A
Aardonyx An early stage in the evolution of
sauropods.
Abelisaurus "Abel's lizard" has been recontructed
from a single skull.
Abrictosaurus An early relative of
Heterodontosaurus.
Abrosaurus A close Asian relative of
Camarasaurus.
Abydosaurus This sauropod's intact skull was
discovered in 2010.
Acanthopholis No, it's not a city in Greece.
Achelousaurus Might this have been a growth stage of
Pachyrhinosaurus?
Achillobator This fierce raptor was discovered in
modern-day Mongolia.
Acrocanthosaurus The largest predator of the early
Cretaceous period.
Adamantisaurus This titanosaur was named 50 years
after its discovery.
Adasaurus This raptor's hind claws were unusually
small.
Adeopapposaurus A close relative of
Massospondylus.
Aegyptosaurus Guess what country this dinosaur was
found in?
Aeolosaurus Could this titanosaur have reared up on
its hind legs?
Aerosteon This air-boned dinosaur may have breathed
like a bird.
Afrovenator One of the few carnivores ever to be dug
up in northern Africa.
Agilisaurus This "agile lizard" was one of the
earliest ornithopods.
Agustinia A large, spiny-backed sauropod.
Alamosaurus No, it wasn't named after the Alamo, but
it should have been.
Alaskacephale Guess what state this pachycephalosaur
was found in?
Albertonykus A tiny, birdlike, North American
dinosaur.
Albertosaurus This carnivorous dinosaur was a close
relative of T. Rex.
Alectrosaurus Few specimens of this "unmarried
lizard" have been found.
Aletopelta The first ankylosaur known to have lived
in Mexico.
Alioramus All we know about this tyrannosaur is
based on a single skull.
Allosaurus One of the most common predators of the
Jurassic era.
Altirhinus This "high-nosed" plant eater resembled
an early hadrosaur.
Alvarezsaurus A bird-like dinosaur of the late
Cretaceous.
Alxasaurus An early relative of the bizarre
Therizinosaurus.
Amargasaurus A bizarre, spined sauropod from South
America.
Amazonsaurus One of the few dinosaurs to be found in
the Amazon basin.
Ammosaurus This may (or may not) have been the same
dinosaur as Anchisaurus.
Ampelosaurus One of the best-known of the armored
titanosaurs.
Amphicoelias Could it have been the biggest dinosaur
that ever lived?
Amurosaurus The most complete hadrosaur to be
discovered in Russia.
Anabisetia The best-attested South American
ornithopod.
Anatosaurus This dinosaur is now known as either
Anatotitan or Edmontosaurus.
Anatotitan This hadrosaur's name means "giant
duck."
Anchiornis A four-winged dino-bird that resembled
Microraptor.
Anchisaurus One of the first dinosaurs ever to be
dug up in the U.S.
Andesaurus This titanosaur rivaled Argentinosaurus
in size.
Angaturama A Brazilian relative of Spinosaurus.
Angolatitan The first dinosaur ever to be discovered
in Angola.
Angulomastacator This dinosaur had a strangely
shaped upper jaw.
Animantarx This "living fortress" was discovered in
an unusual way.
Ankylosaurus The Cretaceous equivalent of a Sherman
tank.
Anserimimus This "goose mimic" didn’t bear much of a
resemblance.
Antarctopelta The first dinosaur fossil ever
discovered in Antarctica.
Antarctosaurus This titanosaur may or may not have
lived in Antarctica.
Antetonitrus Either a very late prosauropod, or a
very early sauropod.
Apatosaurus The dinosaur formerly known as
Brontosaurus.
Appalachiosaurus One of the few dinosaurs ever to be
found in Alabama.
Aragosaurus Named after the Aragon region of
Spain.
Aralosaurus Not much is known about this central
Asian duckbill.
Archaeoceratops Possibly the smallest ceratopsian
that ever lived.
Archaeopteryx This ancient, flying reptile was about
the size of a modern pigeon.
Archaeornithomimus A likely ancestor of
Ornithomimus.
Argentinosaurus Possibly the largest dinosaur that
ever lived.
Argyrosaurus A plus-sized titanosaur from South
America.
Aristosuchus This "noble crocodile" was actually a
dinosaur.
Arrhinoceratops This ceratopsian was named for its
"missing" nose horn.
Astrodon The official state dinosaur of
Maryland.
Atlasaurus This sauropod had unusually long
legs.
Atlascopcosaurus Named after a manufacturer of
digging equipment.
Atrociraptor This "cruel thief" wasn't as atrocious
as its name implies.
Aublysodon This tyrannosaur was named after a single
tooth.
Aucasaurus This predator was a close relative of
Carnotaurus.
Auroraceratops A close relative of
Archaeoceratops.
Australodocus This sauropod was found in modern-day
Tanzania.
Australovenator A brand-new carnivore from
Australia.
Austroraptor The largest raptor from South
America.
Austrosaurus This titanosaur was discovered near a
train station.
Avaceratops This ceratopsian is represented by a
single juvenile.
Aviatyrannis This "grandmother tyrant" was one of
the first tyrannosaurs.
Avimimus A particularly bird-like cousin of
Oviraptor.
B
Bactrosaurus One of the earliest of the duck-billed
dinosaurs.
Bagaceratops A small ceratopsian from central
Asia.
Bagaraatan No one is quite sure how to classify this
theropod.
Bahariasaurus This obscure carnivore may have been
the size of T. Rex.
Balaur This "stocky dragon" was recently discovered
in Romania.
Bambiraptor Yes, this tiny raptor was named after
you-know-who.
Barapasaurus Probably the first of the giant
sauropods.
Barosaurus An enormous plant-eater with a tiny
head.
Baryonyx You wouldn't want to clip this dinosaur's
claws.
Becklespinax A strangely named theropod of the early
Cretaceous period.
Beipiaosaurus The only known feathered
therizinosaur.
Beishanlong This bird mimic weighed over half a
ton.
Bellusaurus A herd of this sauropod drowned in a
flash flood.
Bistahieversor This tyrannosaur had more teeth than
T. Rex.
Bonitasaura This titanosaur wasn't as beautiful as
its name implies.
Borogovia This theropod was named after a Lewis
Carroll poem.
Bothriospondylus A case study in dinosaur
confusion.
Brachiosaurus A giant, gentle, long-necked
plant-eater.
Brachyceratops A little-known ceratopsian from North
America.
Brachylophosaurus This duck-billed dinosaur's beak
looked more like a parrot's.
Brachytrachelopan This sauropod had an unusually
short neck.
Brontomerus Its name is Greek for "thunder
thighs."
Bruhathkayosaurus Was this titanosaur bigger than
Argentinosaurus?
Buitreraptor The oldest raptor ever discovered in
South America.
Byronosaurus This theropod was a close relative of
Troodon.
C
Camarasaurus The most common sauropod of Jurassic
North America.
Camelotia An early member of the line that evolved
into sauropods.
Camptosaurus A close relative of Iguanodon.
Carcharodontosaurus Its name means "great white
shark lizard." Impressed yet?
Carnotaurus The shortest arms of any meat-eater--and
horns to match.
Caudipteryx A birdlike dinosaur that changed the
views of paleontologists.
Centrosaurus Like a unicorn, this ceratopsian only
had one horn.
Cerasinops A small ceratopsian of the late
Cretaceous.
Ceratonykus This dino-bird was discovered in
Mongolia in 2009.
Ceratosaurus This primitive carnivore is hard to
classify.
Cetiosauriscus Not to be confused with the more
famous Cetiosaurus.
Cetiosaurus Guess which creature this "whale lizard"
was once mistaken for?
Chaoyangsaurus An early ceratopsian of the late
Jurassic period.
Charonosaurus This duck-billed dinosaur was much
bigger than an elephant.
Chasmosaurus The only dinosaur that came with its
own awning.
Chialingosaurus One of the earliest Asian
stegosaurs.
Chilantaisaurus This large theropod may have been
ancestral to Spinosaurus.
Chindesaurus This early dinosaur was a close
relative of Herrerasaurus.
Chirostenotes This birdlike dinosaur has been known
by three different names.
Chubutisaurus This titanosaur was on Tyrannotitan's
lunch menu.
Chungkingosaurus This early stegosaur had some
primitive characteristics.
Citipati This Mongolian theropod was a close
relative of Oviraptor.
Claosaurus This "broken lizard" was a primitive
hadrosaur.
Coahuilaceratops It had the longest horns of any
known ceratopsian dinosaur.
Coelophysis One of the most ancient dinosaurs ever
to roam the earth.
Coelurus This tiny dinosaur was a close relative of
Compsognathus.
Colepiocephale This thick-skulled dinosaur's name is
Greek for "knucklehead."
Compsognathus The size of a chicken, but much
meaner.
Concavenator This large theropod had a bizarre hump
on its back.
Conchoraptor This "conch thief" may have lunched on
mollusks.
Condorraptor A small theropod of middle Jurassic
South America.
Corythosaurus This "Corinthian-helmeted" dino had a
distinctive mating call.
Crichtonsaurus This dinosaur was named after the
author of Jurassic Park.
Cryolophosaurus This crested carnivore was once
known as "Elvisaurus."
Cryptovolans Was this the same dinosaur as
Microraptor?
D
Dacentrurus The first stegosaur ever to be
described.
Daemonosaurus This "evil lizard" was a close
relative of Coelophysis.
Daspletosaurus This "frightful lizard" was a close
cousin of T. Rex.
Datousaurus A medium-sized sauropod from middle
Jurassic Asia.
Deinocheirus All we know for sure about this
carnivore is the shape of its arms.
DeinonychusOne of the most fearsome predators of the
Cretaceous era.
Deltadromeus An unusually speedy theropod of the
middle Cretaceous.
Diabloceratops It looked like a cross between a
Triceratops and a Centrosaurus.
Diamantinasaurus This titanosaur was recently
discovered in Australia.
Diceratops Was this two-horned dinosaur really a
specimen of Triceratops?
Dicraeosaurus A medium-sized, spiny-necked
sauropod.
Dilong This "emperor dragon" may have been an
ancestor of T. Rex.
Dilophosaurus This dino was distinguished by the
bony crests on its noggin.
Dimetrodon This ancient synapsid had a huge sail on
its back.
Diplodocus "Thin at one end, much thicker in the
middle, and thin again at the far end."
Dollodon Named after the Belgian paleontologist
Louis Dollo.
Dracopelta This early ankylosaur was discovered in
Portugal.
Dracorex The only dinosaur to be named after the
Harry Potter books.
Dravidosaurus This "dinosaur" may actually have been
a marine reptile.
Drinker Named after the famous paleontologist Edward
Drinker Cope.
Dromaeosaurus This "running lizard" was probably
covered with feathers.
Dromiceiomimus Possibly the fastest dinosaur that
ever lived.
Dryosaurus A typical ornithopod of the late
Jurassic.
Dryptosaurus The first tyrannosaur to be discovered
in the U.S.
Dubreuillosaurus This megalosaur had a long, low
snout.
Dyslocosaurus Its name means "hard-to-place
lizard."
Dystrophaeus This Diplodocus-like sauropod was named
by Edward Cope.
E
Echinodon One of the few ornithopods to sport a set
of canines.
Edmarka This may have been a species of
Torvosaurus.
Edmontonia This armored dinosaur never actually
lived in Edmonton.
Edmontosaurus This large, duck-billed herbivore was
a contemporary of T. Rex.
Efraasia This Triassic herbivore may have been
ancestral to sauropods.
Einiosaurus This ceratopsian was a close relative of
Centrosaurus.
Ekrixinatosaurus Its name means "explosion-born
lizard."
Elaphrosaurus A lightweight theropod from the late
Jurassic.
Elrhazosaurus Once classified as a species of
Valdosaurus.
Enigmosaurus This "puzzle lizard" was closely
related to Therizinosaurus.
Eocarcharia This "dawn shark" prowled the woodlands
of northern Africa.
Eocursor This late Triassic reptile was one of the
earliest true dinosaurs.
Eodromaeus Yet another ancient theropod from South
America.
Eolambia An early hadrosaur from North America.
Eoraptor This tiny dinosaur was among the first of
its kind.
Eotyrannus This early tyrannosaur looked more like a
raptor.
Epachthosaurus This "heavy lizard" was relatively
primitive for its time and place.
Epidendrosaurus Did this tiny dino-bird spend its
life up a tree?
Equiijubus Its name is Greek for "horse mane."
Erketu This titanosaur had an unusually long
neck.
Erlikosaurus This late therizinosaur roamed the
Mongolian forests.
Euhelopus The first sauropod to be discovered in
China.
Euoplocephalus Even this ankylosaur's eyelids were
armored.
Europasaurus The smallest sauropod ever
discovered.
Euskelosaurus The first dinosaur ever to be
discovered in Africa.
Eustreptospondylus A close cousin of
Megalosaurus.
F
Fabrosaurus This early ornithopod may have been a
species of Lesothosaurus.
Falcarius A bizarre, feathered theropod from North
America.
Fruitadens One of the tiniest dinosaurs ever to live
in North America.
Fukuiraptor One of the few carnivorous dinosaurs
ever to be dug up in Japan.
Fukuisaurus This ornithopod was discovered in
Japan.
Fulgurotherium Very little is known about this
"lightning beast."
Futalognkosaurus A very big, and very strangely
named, sauropod.
G
Gallimimus This "chicken mimic" roamed the plains of
the late Cretaceous.
Gargoyleosaurus This "gargoyle lizard" was an
ancestor of Ankylosaurus.
Garudimimus A relative slowpoke compared to other
ornithomimids.
Gasosaurus Yes, that's its real name, and no, it
isn't for the reason you think.
Gasparinisaura One of the few ornithopods known to
have lived in South America.
Gastonia This ankylosaur was probably on
Utahraptor's lunch menu.
Giganotosaurus Not quite a "Gigantosaurus," but
close enough.
Gigantoraptor This huge oviraptor weighed over two
tons.
Gigantspinosaurus It may or may not have been a true
stegosaur.
Gilmoreosaurus One of the few dinosaurs known to
have suffered from cancer.
Giraffatitan Might this "giant giraffe" have been a
species of Brachiosaurus?
Gobiceratops This ceratopsian's tiny skull was found
in the Gobi Desert.
Gojirasaurus This early predator was named after
Godzilla.
Gondwanatitan Yet another titanosaur from South
America.
Gorgosaurus Might this tyrannosaur have been a
species of Albertosaurus?
Goyocephale A primitive bonehead from Asia.
Gryposaurus One of the most common of the
duck-billed dinosaurs.
Guanlong Probably the first tyrannosaur ever to walk
the earth.
H
Hadrosaurus The official state dinosaur of New
Jersey.
Hagryphus The largest North American oviraptor yet
discovered.
Haplocanthosaurus A typical sauropod of the late
Jurassic.
Haplocheirus This feathered dinosaur predated
Archeopteryx by millions of years.
Harpymimus Named after the winged creature of Greek
myth.
Herrerasaurus This carnivore roamed present-day
South America.
Hesperonychus A tiny North American dinosaur.
Hesperosaurus The oldest stegosaur discovered in
North America.
Heterodontosaurus This "different-toothed" dinosaur
was a dentist's nightmare.
Hexinlusaurus Named after the Chinese professor He
Xin-Lu.
Heyuannia Yet another close relative of
Oviraptor.
Hippodraco This "horse dragon" was recently
discovered in Utah.
Homalocephale This herbivore had a very flat--and
very thick--skull.
Hongshanosaurus This early ceratopsian is known by
two skulls.
Huabeisaurus A titanosaur from northern China.
Huaxiagnathus One of the biggest dino-birds of its
time.
Huayangosaurus Could this have been the ancestor of
all the stegosaurs?
Hylaeosaurus One of the first creatures ever to be
called a dinosaur.
Hypacrosaurus We know a lot about this dinosaur's
family life.
Hypselosaurus This titanosaur's eggs were a foot in
diameter.
Hypsilophodon This man-sized herbivore liked to eat
and run.
I
Ignavusaurus Its name means "cowardly lizard."
Iguanacolossus A brand-new ornithopod from North
America.
Iguanodon The second dinosaur in history ever to
receive a name.
Ilokelesia A primitive abelisaur from South
America.
Incisivosaurus This buck-toothed dinosaur was the
Cretaceous equivalent of a beaver.
Indosuchus This "Indian crocodile" was actually a
dinosaur.
Ingenia A small, birdlike dinosaur from central
Asia.
Irritator This spinosaur was named by a very
frustrated paleontologist.
Isisaurus Otherwise known as the Indian Statistical
Institute Lizard.
J
Janenschia The earliest titanosaur in the fossil
record.
Jaxartosaurus A poorly known hadrosaur from central
Asia.
Jeholosaurus This ornithopod may have had an
omnivorous diet.
Jeyawati Its name is Zuni for "grinding mouth."
Jinfengopteryx This feathered dinosaur was once
thought to be a true bird.
Jingshanosaurus A close relative of
Yunnanosaurus.
Jinzhousaurus This Asian dinosaur was one of the
first hadrosaurs.
Jobaria A strange, short-tailed African
sauropod.
Juravenator Why didn't this presumed "dino-bird"
have feathers?
K
Kaijiangosaurus This might have been the same
dinosaur as Gasosaurus.
Kentrosaurus A smaller, African cousin of
Stegosaurus.
Khaan Few small mammals dared face the wrath of this
dinosaur.
Kileskus Yet another "basal" tyrannosaur from
central Asia.
Kol It's tied with Mei for "shortest dinosaur
name."
Koreaceratops Did this ceratopsian like to go
swimming?
Kosmoceratops This ceratopsian had a bizarre,
downward-folding frill.
Kotasaurus One of the few sauropods to be discovered
in India.
Kritosaurus A famous, but poorly understood,
hadrosaur.
Kryptops This dinosaur came equipped with its own
face mask.
L
Labocania It may or may not have been a true
tyrannosaur.
Lagosuchus Could this have been the ancestor of all
the dinosaurs?
Lambeosaurus This herbivore had a hatchet-shaped
crest on its noggin.
Lanzhousaurus This herbivore's teeth were half a
foot long.
Lapparentosaurus This sauropod was discovered in
Madagascar.
Leaellynasaura The only dinosaur ever to be named
after a little girl.
Leptoceratops One of the most primitive of all
ceratopsians.
Lesothosaurus One of the earliest of all the
ornithischian dinosaurs.
Lessemsaurus Named after the popular science writer
Don Lessem.
Lexovisaurus One of the oldest European
stegosaurs.
Liaoceratops A tiny ceratopsian of early Cretaceous
Asia.
Liliensternus One of the largest carnivores of the
Triassic period.
Limusaurus Was this toothless theropod a
vegetarian?
Linhenykus This tiny dinosaur had single-clawed
hands.
Linheraptor This Mongolian raptor was discovered in
2008.
Lophostropheus This theropod lived near the
Triassic/Jurassic boundary.
Lourinhanosaurus This hard-to-classify theropod was
discovered in Portugal.
Luanchuanraptor A small, poorly understood Asian
raptor.
Lufengosaurus A common sight at Chinese natural
history museums.
Lurdusaurus This ornithopod resembled a giant
sloth.
Lycorhinus This dinosaur was once thought to be a
mammal-like reptile.
M
Magnirostris This ceratopsian had an unusually big
beak.
Magnosaurus Once thought to be a species of
Megalosaurus.
Magyarosaurus This dwarf titanosaur was probably
confined to a small island.
Mahakala This dino-bird was named after a Buddhist
deity.
Maiasaura This "good mother lizard" kept close tabs
on her young.
Majungatholus Fairly--or unfairly--known as the
"cannibal dinosaur."
Malawisaurus The first titanosaur to be found with
an intact skull.
Mamenchisaurus The longest-necked dinosaur that ever
lived.
Mantellisaurus Named after the famous fossil hunter
Gideon Mantell.
Mapusaurus This huge carnivore was closely related
to Giganotosaurus.
Marshosaurus Named after the famous paleontologist
Othniel C. Marsh.
Masiakasaurus A bizarre, buck-toothed predator of
the late Cretaceous.
Massospondylus This small, lithe, bipedal
plant-eater roamed the plains of South Africa.
Maxakalisaurus One of the biggest titanosaurs ever
found in Brazil.
Medusaceratops This frilled dinosaur was a close
relative of Centrosaurus.
Megalosaurus The first dinosaur ever to be
discovered and named.
Megapnosaurus Its name is Greek for "big dead
lizard."
Megaraptor Despite its name, it wasn't really a
raptor.
Mei The current record-holder for "shortest dinosaur
name."
Melanorosaurus Probably the largest prosauropod that
ever lived.
Metriacanthosaurus Yet another dinosaur that was
once mistaken for Megalosaurus.
Microceratops Probably the smallest ceratopsian that
ever lived.
Micropachycephalosaurus The current record-holder
for longest dinosaur name.
Microraptor This tiny proto-bird had four wings
rather than two.
Minmi An early (and very dumb) ankylosaur from
Australia.
Minotaurasaurus Named after the half-man, half-bull
of Greek myth.
Miragaia This stegosaur had an unusually long
neck.
Mirischia Its name means "wonderful pelvis."
Mojoceratops This ceratopsian had a heart-shaped
frill.
Monkonosaurus The first dinosaur ever to be
discovered in modern-day Tibet.
Monoclonius Might this have been a species of
Centrosaurus?
Monolophosaurus This Jurassic predator had a single
crest on its skull.
Mononykus This dinosaur may have dug into termite
mounds for its lunch.
Mussaurus This "mouse lizard" lived in Triassic
South America.
Muttaburrasaurus The most complete dinosaur fossil
ever found in Australia.
Mymoorapelta Named after the Mygand-Moore quarry in
Colorado.
N
Nanotyrannus Could this have been a juvenile T.
Rex?
Nanshiungosaurus A bizarre therizinosaur from
Asia.
Nedcolbertia Named after the famous paleontologist
Edwin Colbert.
Neimongosaurus A rare therizinosaur from inner
Mongolia.
Nemegtomaia This dinosaur had a bizarrely shaped
skull.
Nemegtosaurus This titanosaur has been recreated
from a single, incomplete skull.
Neovenator One of the largest carnivorous dinosaurs
of western Europe.
Neuquensaurus Was this titanosaur really a species
of Saltasaurus?
Nigersaurus This African sauropod had a huge number
of teeth.
Noasaurus Were this predator's giant claws on its
hands, or on its feet?
Nodocephalosaurus This armored dinosaur has been
reconstructed from a single skull.
Nodosaurus One of the first armored dinosaurs ever
discovered in North America.
Nomingia This small dinosaur had a peacock-like
tail.
Nothronychus The first therizonosaur to be found
outside Asia.
Notohypsilophodon A rare South American
ornithopod.
Nqwebasaurus One of the few theropods to be
discovered in sub-Saharan Africa.
Ojoceratops A very close relative of
Triceratops.
Olorotitan One of the most complete dinosaur fossils
ever found in Russia.
Omeisaurus One of the most common Chinese
sauropods.
Opisthocoelicaudia A clumsily named titanosaur of
the late Cretaceous period.
Ornitholestes This "bird robber" probably preyed on
small lizards instead.
Ornithomimus This "bird mimic" resembled a modern
ostrich.
Orodromeus This tiny herbivore was on Troodon's
dinner menu.
Oryctodromeus The only ornithopod known to have
lived in burrows.
Othnielia A small, fast herbivore of the late
Jurassic.
Ouranosaurus Scientists can't decide if this
herbivore had a sail or a hump.
Oviraptor Turns out that this "egg thief" got a bad
rap.
Oxalaia This spinosaur was recently discovered in
Brazil.
Ozraptor Not much is known about this Australian
theropod.
P
Pachycephalosaurus This plant-eater gave new meaning
to the word "blockhead."
Pachyrhinosaurus This "thick-nosed lizard" roamed
the North American forests.
Paluxysaurus A contender for the official Texas
state dinosaur.
Panoplosaurus A squat, stocky nodosaur of the late
Cretaceous.
Panphagia Its name is Greek for "eats
everything."
Pantydraco No, this dinosaur didn't wear
you-know-what.
Paralititan This huge sauropod was discovered
recently in Egypt.
Paranthodon This stegosaur was discovered over 150
years ago.
Parasaurolophus Probably the loudest dinosaur ever
to roam the earth.
Patagosaurus This "Patagonian lizard" hailed from
South America.
Pawpawsaurus This ancient nodosaur was discovered in
Texas.
Pedopenna One of the earliest known dino-birds.
Pelecanimimus This "pelican mimic" sported over 200
teeth.
Pelorosaurus The first sauropod ever to be
discovered.
Pentaceratops This "five-horned" herbivore really
had only three.
Phuwiangosaurus This titanosaur was discovered in
modern-day Thailand.
Piatnitzkysaurus Its teeth were as sharp as its name
is funny.
Pinacosaurus Did this ankylosaur roam central Asia
in herds?
Pisanosaurus One of the earliest known ornithischian
dinosaurs.
Plateosaurus This herd dinosaur blackened the plains
of the late Triassic.
Pleurocoelus The official state dinosaur of
Texas.
Podokesaurus One of the earliest dinosaurs to live
in eastern North America.
Poekilopleuron It may (or may not) have been a
species of Megalosaurus.
Polacanthus An extremely spiky ankylosaur of the
middle Cretaceous.
Prenocephale This "bonehead" had a round, thick
skull.
Prenoceratops A close relative of Leptoceratops.
Probactrosaurus An early stage in hadrosaur
evolution.
Proceratosaurus Despite its name, not a close
relative of Ceratosaurus.
Procompsognathus Was it an archosaur, or an early
dinosaur?
Prosaurolophus The likely ancestor of both
Saurolophus and Parasaurolophus.
Protarchaeopteryx "Before Archaeopteryx?" It
actually lived millions of years later.
Protoceratops A famous dinosaur with a very funky
frill.
Psittacosaurus This dinosaur's noggin wouldn't have
looked out of place on a parrot.
Puertasaurus This titanosaur rivaled Argentinosaurus
in size.
Pyroraptor This "fire thief" prowled the plains of
prehistoric France.
Q
Qantassaurus Named after the national airline of
Australia.
Qiaowanlong An Asian relative of Brachiosaurus.
Quaesitosaurus This titanosaur may have had
unusually sharp hearing.
R
Rahonavis Was it a raptor-like bird, or a bird-like
raptor?
Rajasaurus This "prince lizard" lived in what is now
modern-day India.
Rapetosaurus The only sauropod ever to be discovered
on modern-day Madagascar.
Raptorex A pint-sized precursor of T. Rex.
Rebbachisaurus A poorly understood sauropod from
northern Africa.
Regnosaurus This stegosaur lived in what is now
modern-day England.
Rhabdodon A possible "missing link" between
Iguanodon and Hypsilophodon.
Rhoetosaurus A medium-sized sauropod from Down
Under.
Richardoestesia Named after the paleontologist
Richard Estes.
Rinchenia Named after the famous paleontologist
Rinchen Barsbold.
Riojasaurus One of the few prosauropods known to
have lived in South America.
Rugops This wrinkly-faced carnivore probably fed on
abandoned carcasses.
S
Saichania This ankylosaur's name is Chinese for
"beautiful."
Saltasaurus The first armored sauropod ever to be
discovered.
Saltopus Experts aren't sure if this was a dinosaur
or an archosaur.
Sanjuansaurus An early theropod from South
America.
Santanaraptor Named after Brazil's Santana
formation.
Sarahsaurus This prosauropod had unusually strong
hands.
Sarcolestes The most likely ancestor of the
ankylosaurs.
Sarcosaurus This "flesh lizard" roamed early
Jurassic England.
Saturnalia The earliest dinosaur known to have had a
herbivorous diet.
Saurolophus One of the few hadrosaurs known to have
lived on two continents.
Sauropelta This ankylosaur's armor helped keep
raptors at bay.
Saurophaganax The official state dinosaur of
Oklahoma.
Sauroposeidon One of the tallest dinosaurs ever to
walk the earth.
Saurornithoides A Troodon-like predator from central
Asia.
Saurornitholestes A close cousin of
Velociraptor.
Scansoriopteryx This early proto-bird probably lived
in trees.
Scelidosaurus Among the earliest of all the armored
dinosaurs.
Scipionyx One of the most perfectly preserved
dinosaur fossils ever found.
Scutellosaurus Probably the smallest of all the
armored dinosaurs.
Secernosaurus The first hadrosaur to be discovered
in South America.
Seitaad This small dinosaur may have been buried in
an avalanche.
Segisaurus An early dinosaur closely related to
Coelophysis.
Segnosaurus One of the most unusual (and poorly
understood) Cretaceous dinosaurs.
Seismosaurus It was huge, to be sure--but might it
have been a species of Diplodocus?
Sellosaurus Another early prosauropod of the
Triassic period.
Shantungosaurus The biggest of all the duck-billed
dinosaurs.
Shenzhousaurus A small, primitive ornithomimid from
China.
Shunosaurus Anatomically speaking, probably the best
known of all the sauropods.
Shuvosaurus Was this meat eater an early dinosaur,
or a two-legged crocodile?
Shuvuuia Scientists can't decide if it was a
dinosaur or a bird.
Siamotyrannus Despite its name, it wasn't a true
tyrannosaur.
Silvisaurus This primitive nodosaur was discovered
in Kansas.
Similicaudipteryx The juveniles may have been
differently feathered than the adults.
Sinocalliopteryx The biggest "dino-bird" yet
discovered.
Sinornithoides A small, feathered dinosaur closely
related to Troodon.
Sinornithomimus This ornithomimid is known from over
a dozen skeletons.
Sinornithosaurus A typical dino-bird of the early
Cretaceous.
Sinosauropteryx The first dinosaur proven to have
feathers.
Sinovenator This "Chinese hunter" preyed on its
fellow dino-birds.
Sinraptor Despite its name, this allosaur wasn't any
better or worse than other dinosaurs.
Sinusonasus It sounds like a disease, but it was
actually a feathered dinosaur.
Skorpiovenator This "scorpion hunter" really ate
meat.
Sonorasaurus The remains of this sauropod were
discovered in Arizona.
Sphaerotholus Yet another dome-headed dino from
North America.
Spinophorosaurus This early sauropod had a
"thagomizer" on its tail.
Spinosaurus This dino was distinguished by the
sail-like structure on its back.
Spinostropheus This theropod was once thought to be
a species of Elaphrosaurus.
Staurikosaurus Another primitive theropod of the
Triassic era.
Stegoceras This small herbivore was built for
high-speed head-butting.
Stegosaurus The small-brained, spike-tailed plant
eater.
Stenopelix Experts aren't sure how to classify this
dinosaur.
Stokesosaurus Some experts think this was the
earliest tyrannosaur.
Struthiomimus This "ostrich mimic" roamed the plains
of North America.
Struthiosaurus The smallest nodosaur yet
discovered.
Stygimoloch Its name means "demon from the river of
death." Got your attention yet?
Styracosaurus Winner of the "most elaborate head
display" competition.
Suchomimus A fish-eater with a distinctly
crocodilian profile.
Supersaurus No, it didn't wear a cape--but this
giant dino was still impressive.
Suuwassea Its name is Native American for "ancient
thunder."
Suzhousaurus A large, early Cretaceous
therizinosaur.
Szechuanosaurus This theropod was a close relative
of Sinraptor.
T
Talarurus This ankylosaur was discovered in the Gobi
Desert.
Talenkauen A rare ornithopod from South America.
Tanius Not much is known about this Chinese
hadrosaur.
Tanycolagreus This mysterious theropod was once
thought to be a species of Coelurus.
Tarascosaurus The only known abelisaur of the
northern hemisphere.
Tarbosaurus The second-biggest tyrannosaur after T.
Rex.
Tarchia Its name means "brainy," but that may be an
exaggeration.
Tastavinsaurus This titanosaur was discovered in
Spain.
Tatankacephalus A brand-new ankylosaur from North
America.
Tawa This ancient theropod points to a South
American origin for dinosaurs.
Technosaurus This early herbivore was named after
Texas Tech university.
Telmatosaurus This duck-billed dinosaur was
discovered in Transylvania.
Tenontosaurus This long-tailed herbivore was hunted
by Deinonychus.
Teratophoneus This "monstrous murderer" wasn't all
that big.
Tethyshadros One of the few dinosaurs to be found in
modern-day Italy.
Texacephale This Texan pachycephalosaur was named in
2010.
Thecodontosaurus The first prosauropod ever to be
discovered.
Theiophytalia Its name means "garden of the
gods."
Therizinosaurus What did Little Orphan Annie say to
this dinosaur? "Reaping lizards!"
Thescelosaurus Did paleontologists find this
dinosaur's mummified heart?
Tianyulong Why did this ornithopod have
feathers?
Tianyuraptor A small, long-legged raptor from
eastern Asia.
Timimus The only ornithomimid ever discovered in
Australia.
Titanoceratops The biggest of all the horned,
frilled dinosaurs.
Titanosaurus This sauropod may--or may not--have
been a unique member of its genus.
Torosaurus This horned, frilled herbivore was a
close cousin of Triceratops.
Torvosaurus One of the largest predators of Jurassic
North America.
Triceratops The famous three-horned plant-eater.
Troodon Possibly the smartest dinosaur that ever
lived.
Tsaagan One of the earliest raptors yet
discovered.
Tsintaosaurus Also known as the "Unicorn
Dinosaur."
Tuojiangosaurus One of the most well-known Chinese
stegosaurs.
Tylocephale The tallest-domed of all the
pachycephalosaurs.
Tyrannosaurus Rex The once--and always--king of the
dinosaurs.
Tyrannotitan We know very little about this
fearsomely named dinosaur.
U
Uberabatitan Discovered in the Uberaba region of
Brazil.
Udanoceratops The largest ceratopsian to run on two
legs.
Unaysaurus One of the oldest prosauropods yet
discovered.
Unenlagia This bird-like raptor was native to South
America.
Urbacodon This Troodon-like predator was discovered
in Uzbekistan.
Utahceratops Guess what state this dinosaur was
discovered in?
Utahraptor Probably the biggest raptor that ever
lived.
V
Valdosaurus This ornithopod was discovered on the
Isle of Wight.
Variraptor The first raptor ever to be discovered in
France.
Velafrons A new addition to the duck-billed dinosaur
family.
Velociraptor This dinosaur was vicious--but a lot
smaller than you thought.
Vulcanodon An early sauropod of the Jurassic
period.
W
Wannanosaurus Probably the smallest of all the
bone-headed dinosaurs.
Wellnhoferia Was it really a species of
Archaeopteryx?
Wintonotitan Another new titanosaur from
Australia.
Wuerhosaurus Could this have been the last of the
stegosaurs?
X
Xenoposeidon Experts aren't sure how to classify
this sauropod.
Xenotarsosaurus A poorly understood abelisaur from
South America.
Xiaosaurus A small ornithopod from late Jurassic
Asia.
Xiongguanlong A small, primitive tyrannosaur from
Asia.
Xixianykus A long-legged dino-bird from eastern
Asia.
Xuanhanosaurus You didn't think there'd be so many
"X"'s on this list, did you?
Xuanhuaceratops An early ceratopsian of the late
Jurassic.
Y
Yamaceratops No, it didn't have a sweet potato for a
head.
Yandusaurus A small ornithopod of middle Jurassic
China.
Yangchuanosaurus A large theropod of late Jurassic
Asia.
Yaverlandia A classic case of mistaken dinosaur
identity.
Yimenosaurus One of the better-known Chinese
prosauropods.
Yinlong This "hidden dragon" was an early
ceratopsian.
Yizhousaurus The earliest intact sauropod yet
discovered.
Yunnanosaurus One of the last prosauropods to walk
the earth.
Z
Zalmoxes A strange-looking ornithopod from
Romania.
Zanabazar Named after a Buddhist spiritual
leader.
Zhuchengosaurus This hadrosaur was even bigger than
Shantungosaurus.
Zhuchengtyrannus This Asian tyrannosaur was the size
of T. Rex.
Zuniceratops This horned dinosaur was discovered by
an eight-year-old boy.
Zupaysaurus This "devil lizard" was one of the
earliest theropods.
Aardonyx An early stage in the evolution of
sauropods.
Abelisaurus "Abel's lizard" has been recontructed
from a single skull.
Abrictosaurus An early relative of
Heterodontosaurus.
Abrosaurus A close Asian relative of
Camarasaurus.
Abydosaurus This sauropod's intact skull was
discovered in 2010.
Acanthopholis No, it's not a city in Greece.
Achelousaurus Might this have been a growth stage of
Pachyrhinosaurus?
Achillobator This fierce raptor was discovered in
modern-day Mongolia.
Acrocanthosaurus The largest predator of the early
Cretaceous period.
Adamantisaurus This titanosaur was named 50 years
after its discovery.
Adasaurus This raptor's hind claws were unusually
small.
Adeopapposaurus A close relative of
Massospondylus.
Aegyptosaurus Guess what country this dinosaur was
found in?
Aeolosaurus Could this titanosaur have reared up on
its hind legs?
Aerosteon This air-boned dinosaur may have breathed
like a bird.
Afrovenator One of the few carnivores ever to be dug
up in northern Africa.
Agilisaurus This "agile lizard" was one of the
earliest ornithopods.
Agustinia A large, spiny-backed sauropod.
Alamosaurus No, it wasn't named after the Alamo, but
it should have been.
Alaskacephale Guess what state this pachycephalosaur
was found in?
Albertonykus A tiny, birdlike, North American
dinosaur.
Albertosaurus This carnivorous dinosaur was a close
relative of T. Rex.
Alectrosaurus Few specimens of this "unmarried
lizard" have been found.
Aletopelta The first ankylosaur known to have lived
in Mexico.
Alioramus All we know about this tyrannosaur is
based on a single skull.
Allosaurus One of the most common predators of the
Jurassic era.
Altirhinus This "high-nosed" plant eater resembled
an early hadrosaur.
Alvarezsaurus A bird-like dinosaur of the late
Cretaceous.
Alxasaurus An early relative of the bizarre
Therizinosaurus.
Amargasaurus A bizarre, spined sauropod from South
America.
Amazonsaurus One of the few dinosaurs to be found in
the Amazon basin.
Ammosaurus This may (or may not) have been the same
dinosaur as Anchisaurus.
Ampelosaurus One of the best-known of the armored
titanosaurs.
Amphicoelias Could it have been the biggest dinosaur
that ever lived?
Amurosaurus The most complete hadrosaur to be
discovered in Russia.
Anabisetia The best-attested South American
ornithopod.
Anatosaurus This dinosaur is now known as either
Anatotitan or Edmontosaurus.
Anatotitan This hadrosaur's name means "giant
duck."
Anchiornis A four-winged dino-bird that resembled
Microraptor.
Anchisaurus One of the first dinosaurs ever to be
dug up in the U.S.
Andesaurus This titanosaur rivaled Argentinosaurus
in size.
Angaturama A Brazilian relative of Spinosaurus.
Angolatitan The first dinosaur ever to be discovered
in Angola.
Angulomastacator This dinosaur had a strangely
shaped upper jaw.
Animantarx This "living fortress" was discovered in
an unusual way.
Ankylosaurus The Cretaceous equivalent of a Sherman
tank.
Anserimimus This "goose mimic" didn’t bear much of a
resemblance.
Antarctopelta The first dinosaur fossil ever
discovered in Antarctica.
Antarctosaurus This titanosaur may or may not have
lived in Antarctica.
Antetonitrus Either a very late prosauropod, or a
very early sauropod.
Apatosaurus The dinosaur formerly known as
Brontosaurus.
Appalachiosaurus One of the few dinosaurs ever to be
found in Alabama.
Aragosaurus Named after the Aragon region of
Spain.
Aralosaurus Not much is known about this central
Asian duckbill.
Archaeoceratops Possibly the smallest ceratopsian
that ever lived.
Archaeopteryx This ancient, flying reptile was about
the size of a modern pigeon.
Archaeornithomimus A likely ancestor of
Ornithomimus.
Argentinosaurus Possibly the largest dinosaur that
ever lived.
Argyrosaurus A plus-sized titanosaur from South
America.
Aristosuchus This "noble crocodile" was actually a
dinosaur.
Arrhinoceratops This ceratopsian was named for its
"missing" nose horn.
Astrodon The official state dinosaur of
Maryland.
Atlasaurus This sauropod had unusually long
legs.
Atlascopcosaurus Named after a manufacturer of
digging equipment.
Atrociraptor This "cruel thief" wasn't as atrocious
as its name implies.
Aublysodon This tyrannosaur was named after a single
tooth.
Aucasaurus This predator was a close relative of
Carnotaurus.
Auroraceratops A close relative of
Archaeoceratops.
Australodocus This sauropod was found in modern-day
Tanzania.
Australovenator A brand-new carnivore from
Australia.
Austroraptor The largest raptor from South
America.
Austrosaurus This titanosaur was discovered near a
train station.
Avaceratops This ceratopsian is represented by a
single juvenile.
Aviatyrannis This "grandmother tyrant" was one of
the first tyrannosaurs.
Avimimus A particularly bird-like cousin of
Oviraptor.
B
Bactrosaurus One of the earliest of the duck-billed
dinosaurs.
Bagaceratops A small ceratopsian from central
Asia.
Bagaraatan No one is quite sure how to classify this
theropod.
Bahariasaurus This obscure carnivore may have been
the size of T. Rex.
Balaur This "stocky dragon" was recently discovered
in Romania.
Bambiraptor Yes, this tiny raptor was named after
you-know-who.
Barapasaurus Probably the first of the giant
sauropods.
Barosaurus An enormous plant-eater with a tiny
head.
Baryonyx You wouldn't want to clip this dinosaur's
claws.
Becklespinax A strangely named theropod of the early
Cretaceous period.
Beipiaosaurus The only known feathered
therizinosaur.
Beishanlong This bird mimic weighed over half a
ton.
Bellusaurus A herd of this sauropod drowned in a
flash flood.
Bistahieversor This tyrannosaur had more teeth than
T. Rex.
Bonitasaura This titanosaur wasn't as beautiful as
its name implies.
Borogovia This theropod was named after a Lewis
Carroll poem.
Bothriospondylus A case study in dinosaur
confusion.
Brachiosaurus A giant, gentle, long-necked
plant-eater.
Brachyceratops A little-known ceratopsian from North
America.
Brachylophosaurus This duck-billed dinosaur's beak
looked more like a parrot's.
Brachytrachelopan This sauropod had an unusually
short neck.
Brontomerus Its name is Greek for "thunder
thighs."
Bruhathkayosaurus Was this titanosaur bigger than
Argentinosaurus?
Buitreraptor The oldest raptor ever discovered in
South America.
Byronosaurus This theropod was a close relative of
Troodon.
C
Camarasaurus The most common sauropod of Jurassic
North America.
Camelotia An early member of the line that evolved
into sauropods.
Camptosaurus A close relative of Iguanodon.
Carcharodontosaurus Its name means "great white
shark lizard." Impressed yet?
Carnotaurus The shortest arms of any meat-eater--and
horns to match.
Caudipteryx A birdlike dinosaur that changed the
views of paleontologists.
Centrosaurus Like a unicorn, this ceratopsian only
had one horn.
Cerasinops A small ceratopsian of the late
Cretaceous.
Ceratonykus This dino-bird was discovered in
Mongolia in 2009.
Ceratosaurus This primitive carnivore is hard to
classify.
Cetiosauriscus Not to be confused with the more
famous Cetiosaurus.
Cetiosaurus Guess which creature this "whale lizard"
was once mistaken for?
Chaoyangsaurus An early ceratopsian of the late
Jurassic period.
Charonosaurus This duck-billed dinosaur was much
bigger than an elephant.
Chasmosaurus The only dinosaur that came with its
own awning.
Chialingosaurus One of the earliest Asian
stegosaurs.
Chilantaisaurus This large theropod may have been
ancestral to Spinosaurus.
Chindesaurus This early dinosaur was a close
relative of Herrerasaurus.
Chirostenotes This birdlike dinosaur has been known
by three different names.
Chubutisaurus This titanosaur was on Tyrannotitan's
lunch menu.
Chungkingosaurus This early stegosaur had some
primitive characteristics.
Citipati This Mongolian theropod was a close
relative of Oviraptor.
Claosaurus This "broken lizard" was a primitive
hadrosaur.
Coahuilaceratops It had the longest horns of any
known ceratopsian dinosaur.
Coelophysis One of the most ancient dinosaurs ever
to roam the earth.
Coelurus This tiny dinosaur was a close relative of
Compsognathus.
Colepiocephale This thick-skulled dinosaur's name is
Greek for "knucklehead."
Compsognathus The size of a chicken, but much
meaner.
Concavenator This large theropod had a bizarre hump
on its back.
Conchoraptor This "conch thief" may have lunched on
mollusks.
Condorraptor A small theropod of middle Jurassic
South America.
Corythosaurus This "Corinthian-helmeted" dino had a
distinctive mating call.
Crichtonsaurus This dinosaur was named after the
author of Jurassic Park.
Cryolophosaurus This crested carnivore was once
known as "Elvisaurus."
Cryptovolans Was this the same dinosaur as
Microraptor?
D
Dacentrurus The first stegosaur ever to be
described.
Daemonosaurus This "evil lizard" was a close
relative of Coelophysis.
Daspletosaurus This "frightful lizard" was a close
cousin of T. Rex.
Datousaurus A medium-sized sauropod from middle
Jurassic Asia.
Deinocheirus All we know for sure about this
carnivore is the shape of its arms.
DeinonychusOne of the most fearsome predators of the
Cretaceous era.
Deltadromeus An unusually speedy theropod of the
middle Cretaceous.
Diabloceratops It looked like a cross between a
Triceratops and a Centrosaurus.
Diamantinasaurus This titanosaur was recently
discovered in Australia.
Diceratops Was this two-horned dinosaur really a
specimen of Triceratops?
Dicraeosaurus A medium-sized, spiny-necked
sauropod.
Dilong This "emperor dragon" may have been an
ancestor of T. Rex.
Dilophosaurus This dino was distinguished by the
bony crests on its noggin.
Dimetrodon This ancient synapsid had a huge sail on
its back.
Diplodocus "Thin at one end, much thicker in the
middle, and thin again at the far end."
Dollodon Named after the Belgian paleontologist
Louis Dollo.
Dracopelta This early ankylosaur was discovered in
Portugal.
Dracorex The only dinosaur to be named after the
Harry Potter books.
Dravidosaurus This "dinosaur" may actually have been
a marine reptile.
Drinker Named after the famous paleontologist Edward
Drinker Cope.
Dromaeosaurus This "running lizard" was probably
covered with feathers.
Dromiceiomimus Possibly the fastest dinosaur that
ever lived.
Dryosaurus A typical ornithopod of the late
Jurassic.
Dryptosaurus The first tyrannosaur to be discovered
in the U.S.
Dubreuillosaurus This megalosaur had a long, low
snout.
Dyslocosaurus Its name means "hard-to-place
lizard."
Dystrophaeus This Diplodocus-like sauropod was named
by Edward Cope.
E
Echinodon One of the few ornithopods to sport a set
of canines.
Edmarka This may have been a species of
Torvosaurus.
Edmontonia This armored dinosaur never actually
lived in Edmonton.
Edmontosaurus This large, duck-billed herbivore was
a contemporary of T. Rex.
Efraasia This Triassic herbivore may have been
ancestral to sauropods.
Einiosaurus This ceratopsian was a close relative of
Centrosaurus.
Ekrixinatosaurus Its name means "explosion-born
lizard."
Elaphrosaurus A lightweight theropod from the late
Jurassic.
Elrhazosaurus Once classified as a species of
Valdosaurus.
Enigmosaurus This "puzzle lizard" was closely
related to Therizinosaurus.
Eocarcharia This "dawn shark" prowled the woodlands
of northern Africa.
Eocursor This late Triassic reptile was one of the
earliest true dinosaurs.
Eodromaeus Yet another ancient theropod from South
America.
Eolambia An early hadrosaur from North America.
Eoraptor This tiny dinosaur was among the first of
its kind.
Eotyrannus This early tyrannosaur looked more like a
raptor.
Epachthosaurus This "heavy lizard" was relatively
primitive for its time and place.
Epidendrosaurus Did this tiny dino-bird spend its
life up a tree?
Equiijubus Its name is Greek for "horse mane."
Erketu This titanosaur had an unusually long
neck.
Erlikosaurus This late therizinosaur roamed the
Mongolian forests.
Euhelopus The first sauropod to be discovered in
China.
Euoplocephalus Even this ankylosaur's eyelids were
armored.
Europasaurus The smallest sauropod ever
discovered.
Euskelosaurus The first dinosaur ever to be
discovered in Africa.
Eustreptospondylus A close cousin of
Megalosaurus.
F
Fabrosaurus This early ornithopod may have been a
species of Lesothosaurus.
Falcarius A bizarre, feathered theropod from North
America.
Fruitadens One of the tiniest dinosaurs ever to live
in North America.
Fukuiraptor One of the few carnivorous dinosaurs
ever to be dug up in Japan.
Fukuisaurus This ornithopod was discovered in
Japan.
Fulgurotherium Very little is known about this
"lightning beast."
Futalognkosaurus A very big, and very strangely
named, sauropod.
G
Gallimimus This "chicken mimic" roamed the plains of
the late Cretaceous.
Gargoyleosaurus This "gargoyle lizard" was an
ancestor of Ankylosaurus.
Garudimimus A relative slowpoke compared to other
ornithomimids.
Gasosaurus Yes, that's its real name, and no, it
isn't for the reason you think.
Gasparinisaura One of the few ornithopods known to
have lived in South America.
Gastonia This ankylosaur was probably on
Utahraptor's lunch menu.
Giganotosaurus Not quite a "Gigantosaurus," but
close enough.
Gigantoraptor This huge oviraptor weighed over two
tons.
Gigantspinosaurus It may or may not have been a true
stegosaur.
Gilmoreosaurus One of the few dinosaurs known to
have suffered from cancer.
Giraffatitan Might this "giant giraffe" have been a
species of Brachiosaurus?
Gobiceratops This ceratopsian's tiny skull was found
in the Gobi Desert.
Gojirasaurus This early predator was named after
Godzilla.
Gondwanatitan Yet another titanosaur from South
America.
Gorgosaurus Might this tyrannosaur have been a
species of Albertosaurus?
Goyocephale A primitive bonehead from Asia.
Gryposaurus One of the most common of the
duck-billed dinosaurs.
Guanlong Probably the first tyrannosaur ever to walk
the earth.
H
Hadrosaurus The official state dinosaur of New
Jersey.
Hagryphus The largest North American oviraptor yet
discovered.
Haplocanthosaurus A typical sauropod of the late
Jurassic.
Haplocheirus This feathered dinosaur predated
Archeopteryx by millions of years.
Harpymimus Named after the winged creature of Greek
myth.
Herrerasaurus This carnivore roamed present-day
South America.
Hesperonychus A tiny North American dinosaur.
Hesperosaurus The oldest stegosaur discovered in
North America.
Heterodontosaurus This "different-toothed" dinosaur
was a dentist's nightmare.
Hexinlusaurus Named after the Chinese professor He
Xin-Lu.
Heyuannia Yet another close relative of
Oviraptor.
Hippodraco This "horse dragon" was recently
discovered in Utah.
Homalocephale This herbivore had a very flat--and
very thick--skull.
Hongshanosaurus This early ceratopsian is known by
two skulls.
Huabeisaurus A titanosaur from northern China.
Huaxiagnathus One of the biggest dino-birds of its
time.
Huayangosaurus Could this have been the ancestor of
all the stegosaurs?
Hylaeosaurus One of the first creatures ever to be
called a dinosaur.
Hypacrosaurus We know a lot about this dinosaur's
family life.
Hypselosaurus This titanosaur's eggs were a foot in
diameter.
Hypsilophodon This man-sized herbivore liked to eat
and run.
I
Ignavusaurus Its name means "cowardly lizard."
Iguanacolossus A brand-new ornithopod from North
America.
Iguanodon The second dinosaur in history ever to
receive a name.
Ilokelesia A primitive abelisaur from South
America.
Incisivosaurus This buck-toothed dinosaur was the
Cretaceous equivalent of a beaver.
Indosuchus This "Indian crocodile" was actually a
dinosaur.
Ingenia A small, birdlike dinosaur from central
Asia.
Irritator This spinosaur was named by a very
frustrated paleontologist.
Isisaurus Otherwise known as the Indian Statistical
Institute Lizard.
J
Janenschia The earliest titanosaur in the fossil
record.
Jaxartosaurus A poorly known hadrosaur from central
Asia.
Jeholosaurus This ornithopod may have had an
omnivorous diet.
Jeyawati Its name is Zuni for "grinding mouth."
Jinfengopteryx This feathered dinosaur was once
thought to be a true bird.
Jingshanosaurus A close relative of
Yunnanosaurus.
Jinzhousaurus This Asian dinosaur was one of the
first hadrosaurs.
Jobaria A strange, short-tailed African
sauropod.
Juravenator Why didn't this presumed "dino-bird"
have feathers?
K
Kaijiangosaurus This might have been the same
dinosaur as Gasosaurus.
Kentrosaurus A smaller, African cousin of
Stegosaurus.
Khaan Few small mammals dared face the wrath of this
dinosaur.
Kileskus Yet another "basal" tyrannosaur from
central Asia.
Kol It's tied with Mei for "shortest dinosaur
name."
Koreaceratops Did this ceratopsian like to go
swimming?
Kosmoceratops This ceratopsian had a bizarre,
downward-folding frill.
Kotasaurus One of the few sauropods to be discovered
in India.
Kritosaurus A famous, but poorly understood,
hadrosaur.
Kryptops This dinosaur came equipped with its own
face mask.
L
Labocania It may or may not have been a true
tyrannosaur.
Lagosuchus Could this have been the ancestor of all
the dinosaurs?
Lambeosaurus This herbivore had a hatchet-shaped
crest on its noggin.
Lanzhousaurus This herbivore's teeth were half a
foot long.
Lapparentosaurus This sauropod was discovered in
Madagascar.
Leaellynasaura The only dinosaur ever to be named
after a little girl.
Leptoceratops One of the most primitive of all
ceratopsians.
Lesothosaurus One of the earliest of all the
ornithischian dinosaurs.
Lessemsaurus Named after the popular science writer
Don Lessem.
Lexovisaurus One of the oldest European
stegosaurs.
Liaoceratops A tiny ceratopsian of early Cretaceous
Asia.
Liliensternus One of the largest carnivores of the
Triassic period.
Limusaurus Was this toothless theropod a
vegetarian?
Linhenykus This tiny dinosaur had single-clawed
hands.
Linheraptor This Mongolian raptor was discovered in
2008.
Lophostropheus This theropod lived near the
Triassic/Jurassic boundary.
Lourinhanosaurus This hard-to-classify theropod was
discovered in Portugal.
Luanchuanraptor A small, poorly understood Asian
raptor.
Lufengosaurus A common sight at Chinese natural
history museums.
Lurdusaurus This ornithopod resembled a giant
sloth.
Lycorhinus This dinosaur was once thought to be a
mammal-like reptile.
M
Magnirostris This ceratopsian had an unusually big
beak.
Magnosaurus Once thought to be a species of
Megalosaurus.
Magyarosaurus This dwarf titanosaur was probably
confined to a small island.
Mahakala This dino-bird was named after a Buddhist
deity.
Maiasaura This "good mother lizard" kept close tabs
on her young.
Majungatholus Fairly--or unfairly--known as the
"cannibal dinosaur."
Malawisaurus The first titanosaur to be found with
an intact skull.
Mamenchisaurus The longest-necked dinosaur that ever
lived.
Mantellisaurus Named after the famous fossil hunter
Gideon Mantell.
Mapusaurus This huge carnivore was closely related
to Giganotosaurus.
Marshosaurus Named after the famous paleontologist
Othniel C. Marsh.
Masiakasaurus A bizarre, buck-toothed predator of
the late Cretaceous.
Massospondylus This small, lithe, bipedal
plant-eater roamed the plains of South Africa.
Maxakalisaurus One of the biggest titanosaurs ever
found in Brazil.
Medusaceratops This frilled dinosaur was a close
relative of Centrosaurus.
Megalosaurus The first dinosaur ever to be
discovered and named.
Megapnosaurus Its name is Greek for "big dead
lizard."
Megaraptor Despite its name, it wasn't really a
raptor.
Mei The current record-holder for "shortest dinosaur
name."
Melanorosaurus Probably the largest prosauropod that
ever lived.
Metriacanthosaurus Yet another dinosaur that was
once mistaken for Megalosaurus.
Microceratops Probably the smallest ceratopsian that
ever lived.
Micropachycephalosaurus The current record-holder
for longest dinosaur name.
Microraptor This tiny proto-bird had four wings
rather than two.
Minmi An early (and very dumb) ankylosaur from
Australia.
Minotaurasaurus Named after the half-man, half-bull
of Greek myth.
Miragaia This stegosaur had an unusually long
neck.
Mirischia Its name means "wonderful pelvis."
Mojoceratops This ceratopsian had a heart-shaped
frill.
Monkonosaurus The first dinosaur ever to be
discovered in modern-day Tibet.
Monoclonius Might this have been a species of
Centrosaurus?
Monolophosaurus This Jurassic predator had a single
crest on its skull.
Mononykus This dinosaur may have dug into termite
mounds for its lunch.
Mussaurus This "mouse lizard" lived in Triassic
South America.
Muttaburrasaurus The most complete dinosaur fossil
ever found in Australia.
Mymoorapelta Named after the Mygand-Moore quarry in
Colorado.
N
Nanotyrannus Could this have been a juvenile T.
Rex?
Nanshiungosaurus A bizarre therizinosaur from
Asia.
Nedcolbertia Named after the famous paleontologist
Edwin Colbert.
Neimongosaurus A rare therizinosaur from inner
Mongolia.
Nemegtomaia This dinosaur had a bizarrely shaped
skull.
Nemegtosaurus This titanosaur has been recreated
from a single, incomplete skull.
Neovenator One of the largest carnivorous dinosaurs
of western Europe.
Neuquensaurus Was this titanosaur really a species
of Saltasaurus?
Nigersaurus This African sauropod had a huge number
of teeth.
Noasaurus Were this predator's giant claws on its
hands, or on its feet?
Nodocephalosaurus This armored dinosaur has been
reconstructed from a single skull.
Nodosaurus One of the first armored dinosaurs ever
discovered in North America.
Nomingia This small dinosaur had a peacock-like
tail.
Nothronychus The first therizonosaur to be found
outside Asia.
Notohypsilophodon A rare South American
ornithopod.
Nqwebasaurus One of the few theropods to be
discovered in sub-Saharan Africa.
Ojoceratops A very close relative of
Triceratops.
Olorotitan One of the most complete dinosaur fossils
ever found in Russia.
Omeisaurus One of the most common Chinese
sauropods.
Opisthocoelicaudia A clumsily named titanosaur of
the late Cretaceous period.
Ornitholestes This "bird robber" probably preyed on
small lizards instead.
Ornithomimus This "bird mimic" resembled a modern
ostrich.
Orodromeus This tiny herbivore was on Troodon's
dinner menu.
Oryctodromeus The only ornithopod known to have
lived in burrows.
Othnielia A small, fast herbivore of the late
Jurassic.
Ouranosaurus Scientists can't decide if this
herbivore had a sail or a hump.
Oviraptor Turns out that this "egg thief" got a bad
rap.
Oxalaia This spinosaur was recently discovered in
Brazil.
Ozraptor Not much is known about this Australian
theropod.
P
Pachycephalosaurus This plant-eater gave new meaning
to the word "blockhead."
Pachyrhinosaurus This "thick-nosed lizard" roamed
the North American forests.
Paluxysaurus A contender for the official Texas
state dinosaur.
Panoplosaurus A squat, stocky nodosaur of the late
Cretaceous.
Panphagia Its name is Greek for "eats
everything."
Pantydraco No, this dinosaur didn't wear
you-know-what.
Paralititan This huge sauropod was discovered
recently in Egypt.
Paranthodon This stegosaur was discovered over 150
years ago.
Parasaurolophus Probably the loudest dinosaur ever
to roam the earth.
Patagosaurus This "Patagonian lizard" hailed from
South America.
Pawpawsaurus This ancient nodosaur was discovered in
Texas.
Pedopenna One of the earliest known dino-birds.
Pelecanimimus This "pelican mimic" sported over 200
teeth.
Pelorosaurus The first sauropod ever to be
discovered.
Pentaceratops This "five-horned" herbivore really
had only three.
Phuwiangosaurus This titanosaur was discovered in
modern-day Thailand.
Piatnitzkysaurus Its teeth were as sharp as its name
is funny.
Pinacosaurus Did this ankylosaur roam central Asia
in herds?
Pisanosaurus One of the earliest known ornithischian
dinosaurs.
Plateosaurus This herd dinosaur blackened the plains
of the late Triassic.
Pleurocoelus The official state dinosaur of
Texas.
Podokesaurus One of the earliest dinosaurs to live
in eastern North America.
Poekilopleuron It may (or may not) have been a
species of Megalosaurus.
Polacanthus An extremely spiky ankylosaur of the
middle Cretaceous.
Prenocephale This "bonehead" had a round, thick
skull.
Prenoceratops A close relative of Leptoceratops.
Probactrosaurus An early stage in hadrosaur
evolution.
Proceratosaurus Despite its name, not a close
relative of Ceratosaurus.
Procompsognathus Was it an archosaur, or an early
dinosaur?
Prosaurolophus The likely ancestor of both
Saurolophus and Parasaurolophus.
Protarchaeopteryx "Before Archaeopteryx?" It
actually lived millions of years later.
Protoceratops A famous dinosaur with a very funky
frill.
Psittacosaurus This dinosaur's noggin wouldn't have
looked out of place on a parrot.
Puertasaurus This titanosaur rivaled Argentinosaurus
in size.
Pyroraptor This "fire thief" prowled the plains of
prehistoric France.
Q
Qantassaurus Named after the national airline of
Australia.
Qiaowanlong An Asian relative of Brachiosaurus.
Quaesitosaurus This titanosaur may have had
unusually sharp hearing.
R
Rahonavis Was it a raptor-like bird, or a bird-like
raptor?
Rajasaurus This "prince lizard" lived in what is now
modern-day India.
Rapetosaurus The only sauropod ever to be discovered
on modern-day Madagascar.
Raptorex A pint-sized precursor of T. Rex.
Rebbachisaurus A poorly understood sauropod from
northern Africa.
Regnosaurus This stegosaur lived in what is now
modern-day England.
Rhabdodon A possible "missing link" between
Iguanodon and Hypsilophodon.
Rhoetosaurus A medium-sized sauropod from Down
Under.
Richardoestesia Named after the paleontologist
Richard Estes.
Rinchenia Named after the famous paleontologist
Rinchen Barsbold.
Riojasaurus One of the few prosauropods known to
have lived in South America.
Rugops This wrinkly-faced carnivore probably fed on
abandoned carcasses.
S
Saichania This ankylosaur's name is Chinese for
"beautiful."
Saltasaurus The first armored sauropod ever to be
discovered.
Saltopus Experts aren't sure if this was a dinosaur
or an archosaur.
Sanjuansaurus An early theropod from South
America.
Santanaraptor Named after Brazil's Santana
formation.
Sarahsaurus This prosauropod had unusually strong
hands.
Sarcolestes The most likely ancestor of the
ankylosaurs.
Sarcosaurus This "flesh lizard" roamed early
Jurassic England.
Saturnalia The earliest dinosaur known to have had a
herbivorous diet.
Saurolophus One of the few hadrosaurs known to have
lived on two continents.
Sauropelta This ankylosaur's armor helped keep
raptors at bay.
Saurophaganax The official state dinosaur of
Oklahoma.
Sauroposeidon One of the tallest dinosaurs ever to
walk the earth.
Saurornithoides A Troodon-like predator from central
Asia.
Saurornitholestes A close cousin of
Velociraptor.
Scansoriopteryx This early proto-bird probably lived
in trees.
Scelidosaurus Among the earliest of all the armored
dinosaurs.
Scipionyx One of the most perfectly preserved
dinosaur fossils ever found.
Scutellosaurus Probably the smallest of all the
armored dinosaurs.
Secernosaurus The first hadrosaur to be discovered
in South America.
Seitaad This small dinosaur may have been buried in
an avalanche.
Segisaurus An early dinosaur closely related to
Coelophysis.
Segnosaurus One of the most unusual (and poorly
understood) Cretaceous dinosaurs.
Seismosaurus It was huge, to be sure--but might it
have been a species of Diplodocus?
Sellosaurus Another early prosauropod of the
Triassic period.
Shantungosaurus The biggest of all the duck-billed
dinosaurs.
Shenzhousaurus A small, primitive ornithomimid from
China.
Shunosaurus Anatomically speaking, probably the best
known of all the sauropods.
Shuvosaurus Was this meat eater an early dinosaur,
or a two-legged crocodile?
Shuvuuia Scientists can't decide if it was a
dinosaur or a bird.
Siamotyrannus Despite its name, it wasn't a true
tyrannosaur.
Silvisaurus This primitive nodosaur was discovered
in Kansas.
Similicaudipteryx The juveniles may have been
differently feathered than the adults.
Sinocalliopteryx The biggest "dino-bird" yet
discovered.
Sinornithoides A small, feathered dinosaur closely
related to Troodon.
Sinornithomimus This ornithomimid is known from over
a dozen skeletons.
Sinornithosaurus A typical dino-bird of the early
Cretaceous.
Sinosauropteryx The first dinosaur proven to have
feathers.
Sinovenator This "Chinese hunter" preyed on its
fellow dino-birds.
Sinraptor Despite its name, this allosaur wasn't any
better or worse than other dinosaurs.
Sinusonasus It sounds like a disease, but it was
actually a feathered dinosaur.
Skorpiovenator This "scorpion hunter" really ate
meat.
Sonorasaurus The remains of this sauropod were
discovered in Arizona.
Sphaerotholus Yet another dome-headed dino from
North America.
Spinophorosaurus This early sauropod had a
"thagomizer" on its tail.
Spinosaurus This dino was distinguished by the
sail-like structure on its back.
Spinostropheus This theropod was once thought to be
a species of Elaphrosaurus.
Staurikosaurus Another primitive theropod of the
Triassic era.
Stegoceras This small herbivore was built for
high-speed head-butting.
Stegosaurus The small-brained, spike-tailed plant
eater.
Stenopelix Experts aren't sure how to classify this
dinosaur.
Stokesosaurus Some experts think this was the
earliest tyrannosaur.
Struthiomimus This "ostrich mimic" roamed the plains
of North America.
Struthiosaurus The smallest nodosaur yet
discovered.
Stygimoloch Its name means "demon from the river of
death." Got your attention yet?
Styracosaurus Winner of the "most elaborate head
display" competition.
Suchomimus A fish-eater with a distinctly
crocodilian profile.
Supersaurus No, it didn't wear a cape--but this
giant dino was still impressive.
Suuwassea Its name is Native American for "ancient
thunder."
Suzhousaurus A large, early Cretaceous
therizinosaur.
Szechuanosaurus This theropod was a close relative
of Sinraptor.
T
Talarurus This ankylosaur was discovered in the Gobi
Desert.
Talenkauen A rare ornithopod from South America.
Tanius Not much is known about this Chinese
hadrosaur.
Tanycolagreus This mysterious theropod was once
thought to be a species of Coelurus.
Tarascosaurus The only known abelisaur of the
northern hemisphere.
Tarbosaurus The second-biggest tyrannosaur after T.
Rex.
Tarchia Its name means "brainy," but that may be an
exaggeration.
Tastavinsaurus This titanosaur was discovered in
Spain.
Tatankacephalus A brand-new ankylosaur from North
America.
Tawa This ancient theropod points to a South
American origin for dinosaurs.
Technosaurus This early herbivore was named after
Texas Tech university.
Telmatosaurus This duck-billed dinosaur was
discovered in Transylvania.
Tenontosaurus This long-tailed herbivore was hunted
by Deinonychus.
Teratophoneus This "monstrous murderer" wasn't all
that big.
Tethyshadros One of the few dinosaurs to be found in
modern-day Italy.
Texacephale This Texan pachycephalosaur was named in
2010.
Thecodontosaurus The first prosauropod ever to be
discovered.
Theiophytalia Its name means "garden of the
gods."
Therizinosaurus What did Little Orphan Annie say to
this dinosaur? "Reaping lizards!"
Thescelosaurus Did paleontologists find this
dinosaur's mummified heart?
Tianyulong Why did this ornithopod have
feathers?
Tianyuraptor A small, long-legged raptor from
eastern Asia.
Timimus The only ornithomimid ever discovered in
Australia.
Titanoceratops The biggest of all the horned,
frilled dinosaurs.
Titanosaurus This sauropod may--or may not--have
been a unique member of its genus.
Torosaurus This horned, frilled herbivore was a
close cousin of Triceratops.
Torvosaurus One of the largest predators of Jurassic
North America.
Triceratops The famous three-horned plant-eater.
Troodon Possibly the smartest dinosaur that ever
lived.
Tsaagan One of the earliest raptors yet
discovered.
Tsintaosaurus Also known as the "Unicorn
Dinosaur."
Tuojiangosaurus One of the most well-known Chinese
stegosaurs.
Tylocephale The tallest-domed of all the
pachycephalosaurs.
Tyrannosaurus Rex The once--and always--king of the
dinosaurs.
Tyrannotitan We know very little about this
fearsomely named dinosaur.
U
Uberabatitan Discovered in the Uberaba region of
Brazil.
Udanoceratops The largest ceratopsian to run on two
legs.
Unaysaurus One of the oldest prosauropods yet
discovered.
Unenlagia This bird-like raptor was native to South
America.
Urbacodon This Troodon-like predator was discovered
in Uzbekistan.
Utahceratops Guess what state this dinosaur was
discovered in?
Utahraptor Probably the biggest raptor that ever
lived.
V
Valdosaurus This ornithopod was discovered on the
Isle of Wight.
Variraptor The first raptor ever to be discovered in
France.
Velafrons A new addition to the duck-billed dinosaur
family.
Velociraptor This dinosaur was vicious--but a lot
smaller than you thought.
Vulcanodon An early sauropod of the Jurassic
period.
W
Wannanosaurus Probably the smallest of all the
bone-headed dinosaurs.
Wellnhoferia Was it really a species of
Archaeopteryx?
Wintonotitan Another new titanosaur from
Australia.
Wuerhosaurus Could this have been the last of the
stegosaurs?
X
Xenoposeidon Experts aren't sure how to classify
this sauropod.
Xenotarsosaurus A poorly understood abelisaur from
South America.
Xiaosaurus A small ornithopod from late Jurassic
Asia.
Xiongguanlong A small, primitive tyrannosaur from
Asia.
Xixianykus A long-legged dino-bird from eastern
Asia.
Xuanhanosaurus You didn't think there'd be so many
"X"'s on this list, did you?
Xuanhuaceratops An early ceratopsian of the late
Jurassic.
Y
Yamaceratops No, it didn't have a sweet potato for a
head.
Yandusaurus A small ornithopod of middle Jurassic
China.
Yangchuanosaurus A large theropod of late Jurassic
Asia.
Yaverlandia A classic case of mistaken dinosaur
identity.
Yimenosaurus One of the better-known Chinese
prosauropods.
Yinlong This "hidden dragon" was an early
ceratopsian.
Yizhousaurus The earliest intact sauropod yet
discovered.
Yunnanosaurus One of the last prosauropods to walk
the earth.
Z
Zalmoxes A strange-looking ornithopod from
Romania.
Zanabazar Named after a Buddhist spiritual
leader.
Zhuchengosaurus This hadrosaur was even bigger than
Shantungosaurus.
Zhuchengtyrannus This Asian tyrannosaur was the size
of T. Rex.
Zuniceratops This horned dinosaur was discovered by
an eight-year-old boy.
Zupaysaurus This "devil lizard" was one of the
earliest theropods.
