1. Education

Herbivorous Dinosaurs A to Z

Herbivorous dinosaurs--which included sauropods, ankylosaurs, stegosaurs, hadrosaurs, pachycephalosaurs, ornithopods, ceratopsians and titanosaurs--vastly outnumbered meat-eaters in prehistoric times. Here's a complete, A to Z list of every herbivorous dinosaur that ever lived in the Mesozoic Era.

Aardonyx
An early stage in the evolution of sauropods.

Abrictosaurus
An early relative of Heterodontosaurus.

Abrosaurus
A close Asian relative of Camarasaurus.

Abydosaurus
The intact skull of this sauropod was discovered in 2010.

Acanthopholis
No, it's not a city in Greece.

Achelousaurus
Might this have been a growth stage of Pachyrhinosaurus?

Acristavus
This early hadrosaur lacked any ornamentation on its skull.

Acrotholus
North America's earliest bone-headed dinosaur.

Adamantisaurus
This titanosaur was named 50 years after its discovery.

Adeopapposaurus
A close relative of Massospondylus.

Aegyptosaurus
Guess what country this titanosaur was found in?

Aeolosaurus
Could this titanosaur have reared up on its hind legs?

Agathaumas
The first ceratopsian dinosaur ever to be discovered.

Agilisaurus
This "agile lizard" was one of the earliest ornithopods.

Agujaceratops
It was once classified as a species of Chasmosaurus.

Agustinia
A large, spiny-backed sauropod.

Ajkaceratops
The first ceratopsian ever to be discovered in Europe.

Alamosaurus
No, it wasn't named after the Alamo (but it should have been).

Alaskacephale
Guess what state this pachycephalosaur was found in?

Albalophosaurus
One of the few dinosaurs ever to be discovered in Japan.

Albertaceratops
The most basal "centrosaurine" yet identified.

Albertadromeus
This petite ornithopod was recently discovered in Canada.

Aletopelta
The first ankylosaur known to have lived in Mexico.

Altirhinus
This "high nosed" plant eater resembled an early hadrosaur.

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 found 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."

Anchiceratops
This dinosaur had a distinctively shaped frill.

Anchisaurus
One of the first dinosaurs dug up in the United States.

Andesaurus
This titanosaur rivaled Argentinosaurus in size.

Angolatitan
The first dinosaur ever to be discovered in Angola.

Angulomastacator
This dinosaur had an unusually shaped jaw.

Animantarx
This "living fortress" was discovered in an unusual way.

Ankylosaurus
The Cretaceous equivalent of a Sherman tank.

Anodontosaurus
This "toothless lizard" actually had a full set of choppers.

Antarctopelta
The first dinosaur fossil ever found in Antarctica .

Antarctosaurus
Despite its name, this titanosaur may not have lived in Antarctica.

Antetonitrus
Either a very late prosauropod, or a very early sauropod.

Apatosaurus
The dinosaur formerly known as Brontosaurus.

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.

Arcusaurus
This prosauropod was recently discovered in South Africa.

Argentinosaurus
Possibly the largest herbivore that ever lived.

Argyrosaurus
A plus-sized titanosaur from South America.

Arrhinoceratops
This ceratopsian was named for its "missing" nose horn.

Astrodon
The official state dinosaur of Maryland.

Asylosaurus
This "unharmed lizard" escaped destruction during World War II.

Atlasaurus
This sauropod had unusually long legs.

Atlascopcosaurus
Named after a manufacturer of digging equipment.

Auroraceratops
A close relative of Archaeoceratops.

Australodocus
This sauropod was discovered in Tanzania.

Austrosaurus
This titanosaur was discovered near a train station.

Avaceratops
This ceratopsian is represented by a single juvenile.

Bactrosaurus
One of the earliest of the duck-billed dinosaurs.

Bagaceratops
A small ceratopsian from central Asia.

Barapasaurus
Probably the first of the giant sauropods.

Barilium
Yet another iguanodontid ornithopod of the British Isles.

Barosaurus
An enormous plant-eater with a tiny head.

Barsboldia
This hadrosaur was named after Rinchen Barsbold.

Batyrosaurus
One of the most basal hadrosaurs yet identified.

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.

Bonitasaura
This titanosaur wasn’t as beautiful as its name implies..

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.

Bravoceratops
This ceratopsian was recently discovered in Texas.

Brontomerus
Its name is Greek for "thunder thighs."

Bruhathkayosaurus
Was this titanosaur bigger than Argentinosaurus?

Camarasaurus
The most commmon sauropod of Jurassic North America.

Camelotia
An early member of the dinosaur line that evolved into sauropods.

Camptosaurus
A close relative of Iguanodon.

Caudipteryx
A birdlike dinosaur that changed the views of paleontologists.

Centrosaurus
Like a unicorn, this ceratopsian had only one horn.

Cerasinops
A small ceratopsian of the late Cretaceous.

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, much bigger than an elephant.

Chasmosaurus
The only dinosaur that came with its own awning.

Chialingosaurus
One of the earliest Asian stegosaurs.

Chubutisaurus
This titanosaur was on Tyrannotitan's lunch menu.

Chungkingosaurus
This early stegosaur had some very primitive characteristics.

Claosaurus
This "broken lizard" was a primitive hadrosaur.

Coahuilaceratops
It had the longest horns of any known ceratopsian dinosaur.

Colepiocephale
This thick-skulled dino's name is Greek for "knucklehead."

Coronosaurus
This "crown lizard" was once classified as a species of Centrosaurus.

Corythosaurus
This "Corinthian-helmeted" dino had a distinctive mating call.

Crichtonsaurus
This dinosaur was named after the author of Jurassic Park.

Cumnoria
It was once mistakenly classified as a species of Iguanodon.

Dacentrurus
The first stegosaur ever to be described.

Darwinsaurus
"Darwin's lizard" may or may not be a valid dinosaur genus.

Datousaurus
A medium-sized sauropod from middle Jurassic Asia.

Delapparentia
This ornithopod was initially classified as a species of Iguanodon.

Demandasaurus
A poorly understood sauropod of early Cretaceous Europe.

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.

Diplodocus
"Thin at one end, much much thicker in the middle, and then thin again at the far end."

Dollodon
Named after the Belgian paleontologist Louis Dollo.

Draconyx
This "dragon claw" lived in late Jurassic Portugal.

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.

Dryosaurus
A typical ornithopod of the late Jurassic.

Dyoplosaurus
This ankylosaur was once confused with Euoplocephalus.

Dysalotosaurus
We know a lot about this dinosaur's developmental stages.

Dyslocosaurus
Its name means "hard-to-place lizard."

Dystrophaeus
This Diplodocus-like sauropod was named by Edward Cope.

Echinodon
One of the few ornithopods to sport a set of canines.

Edmontonia
This armored dinosaur never actually lived in Edmonton.

Edmontosaurus
This large, duckbilled herbivore was a contemporary of T. Rex.

Efraasia
This Triassic dinosaur may have been ancestral to sauropods.

Einiosaurus
This frilled herbivore was a relative of Centrosaurus.

Elrhazosaurus
Once classified as a species of Valdosaurus.

Eobrontosaurus
This "dawn Brontosaurus" isn't accepted by most scientists.

Eolambia
An early hadrosaur from North America.

Eotriceratops
This "dawn Triceratops" was recently discovered in Canada.

Epachthosaurus
This "heavy lizard" was relatively primitive for its time and place.

Equijubus
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.

Europelta
This early nodosaur was recently discovered in Spain.

Euskelosaurus
The first dinosaur ever to be discovered in Africa.

Fabrosaurus
This early ornithopod may have been a species of Lesothosaurus.

Falcarius
A bizarre, feathered theropod from North America.

Ferganasaurus
The first dinosaur ever to be discovered in the USSR.

Fukuisaurus
This ornithopod was discovered in Japan.

Fulgurotherium
Very little is known about this "lightning beast."

Futalognkosaurus
It sounds like a hot dog, but it was one of the biggest dinosaurs that ever lived.

Gargoyleosaurus
This "gargoyle lizard" was an ancestor of Ankylosaurus.

Gasparinisaura
One of the few ornithopods known to have lived in South America.

Gastonia
This ankylosaur was probably on Utahraptor's lunch menu.

Gideonmantellia
Guess what famous naturalist this dinosaur was named after?

Gigantspinosaurus
This impressively named beast 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?

Glacialisaurus
This "frozen lizard" was a close relative of Lufengosaurus.

Gobiceratops
This ceratopsian's tiny skull was found in the Gobi Desert.

Gobisaurus
An unusually large ankylosaur from central Asia.

Gondwanatitan
Yet another titanosaur from South America.

Goyocephale
A primitive bonehead from Asia.

Gryphoceratops
A tiny ceratopsian of Cretaceous North America.

Gryponyx
This "hooked claw" was a distant sauropod ancestor.

Gryposaurus
One of the most common of the duck-billed dinosaurs.

Guaibasaurus
Was this early dinosaur a theropod or a prosauropod?

Hadrosaurus
The official state dinosaur of New Jersey.

Haplocanthosaurus
A typical sauropod of the late Jurassic period.

Haya
This dinosaur was named after a horse-headed Mongolian god.

Hesperosaurus
The oldest stegosaur yet discovered in North America.

Heterodontosaurus
This "different-toothed" dinosaur was a dentist's nightmare.

Hexinlusaurus
Named after the Chinese professor He Xin-Lu.

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 from two skulls.

Hoplitosaurus
Named after the heavily armored soldiers of classical Greece.

Huabeisaurus
A titanosaur from northern China.

Huanghetitan
Yet another contender for the biggest dinosaur that ever lived.

Huaxiaosaurus
Might it be an unusually large specimen of Shantungosaurus?

Huayangosaurus
Could this have been the ancestor of all the stegosaurs?

Huehuecanauhtlus
Its name is Aztec for "ancient duck."

Hungarosaurus
The best-attested ankylosaur ever discovered in Europe.

Huxleysaurus
Named after the famous biologist Thomas Henry Huxley.

Hylaeosaurus
One of the first creatures ever to be called a "dinosaur."

Hypacrosaurus
We know a lot about this duck-billed dinosaur's family life.

Hypselosaurus
This titanosaur's eggs were a foot in diameter.

Hypselospinus
It was once classified as a species of Iguanodon.

Hypsibema
The official state dinosaur of Missouri.

Hypsilophodon
This man-sized herbivore liked to eat and run.

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.

Incisivosaurus
This buck-toothed dinosaur was the Cretaceous equivalent of a beaver.

Isanosaurus
One of the first sauropods ever to walk the earth.

Isisaurus
Otherwise known as the Indian Statistical Institute Lizard.

Jainosaurus
Named after the Indian paleontologist Sohan Lal Jain.

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."

Jingshanosaurus
A close relative of Yunnanosaurus.

Jinzhousaurus
This Asian dinosaur was one of the first hadrosaurs.

Jobaria
A strange, short-tailed African sauropod.

Judiceratops
The earliest Chasmosaurus ancestor yet identified.

Kaatedocus
This Diplodocus relative had a characteristic grin.

Kazaklambia
This duck-billed dinosaur was discovered in Kazakhstan.

Kentrosaurus
A smaller, African cousin of Stegosaurus.

Kerberosaurus
Named after the three-headed dog of Greek myth.

Koreaceratops
Did this ceratopsian like to go swimming?

Koreanosaurus
Guess what country this ornithopod was discovered in?

Kosmoceratops
This ceratopsian had a bizarre, downward-folding frill.

Kotasaurus
One of the few sauropods to be discovered in modern-day India.

Kritosaurus
A famous, but poorly understood, hadrosaur.

Kukufeldia
Yet another ornithopod that was once lumped in with Iguanodon.

Kundurosaurus
This hadrosaur was discovered in the far east of Russia.

Lambeosaurus
This herbivore had a hatchet-shaped crest on its noggin.

Lamplughsaura
This early sauropod was discovered in India.

Lanzhousaurus
This herbivore's teeth were half a foot long.

Laosaurus
This dubious ornithopod was named by Othniel C. Marsh.

Lapparentosaurus
This sauropod was discovered in Madagascar.

Latirhinus
This duck-billed dinosaur had an enormous nose.

Leaellynosaura
The only dinosaur ever to be named after a little girl.

Leonerasaurus
This prosauropod was recently discovered in Argentina.

Leptoceratops
One of the most primitive of all ceratopsians.

Lesothosaurus
One of the earliest of all the ornithischian dinosaurs.

Lessemsaurus
Named after the popular dinosaur writer Don Lessem.

Lexovisaurus
One of the earliest European stegosaurs.

Leyesaurus
A newly discovered prosauropod from South America.

Liaoceratops
A tiny ceratopsian of early Cretaceous Asia.

Liaoningosaurus
One of the smallest ankylosaurs in the fossil record.

Limaysaurus
This sauropod was once classified as a species of Rebbachisaurus.

Lophorhothon
The first dinosaur ever to be discovered in Alabama.

Loricatosaurus
This stegosaur was once classified as a species of Lexovisaurus.

Lourinhasaurus
This sauropod was discovered in modern-day Portugal.

Lufengosaurus
A familiar sight at Chinese natural history museums.

Lurdusaurus
This ornithopod bore an uncanny resemblance to a giant sloth.

Lusotitan
This sauropod was once classified as a species of Brachiosaurus.

Lycorhinus
This dinosaur was once thought to be a mammal-like reptile.

Macrogryphosaurus
Otherwise known as the Big Enigmatic Lizard.

Magnapaulia
The largest lambeosaurine hadrosaur yet identified.

Magnirostris
This ceratopsian had an unusually big beak.

Magyarosaurus
This dwarf titanosaur was probably confined to a small island.

Maiasaura
This "good mother lizard" stayed close to her young.

Malawisaurus
The first titanosaur to be found with its skull intact.

Mamenchisaurus
The longest-necked dinosaur that ever lived.

Manidens
A strangely toothed relative of Heterodontosaurus.

Mantellisaurus
Named after the famous fossil hunter Gideon Mantell.

Mantellodon
This Iguanodon refugee may or may not deserve its own genus.

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 closely related to Centrosaurus.

Melanorosaurus
Probably the largest prosauropod that ever lived.

Mendozasaurus
This titanosaur was ancestral to Futalognkosaurus.

Microceratops
Probably the smallest ceratopsian that ever lived.

Micropachycephalosaurus
The current record-holder for longest dinosaur name.

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.

Mochlodon
One of the few dinosaurs ever to be discovered in Austria.

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?

Montanoceratops
A primitive ceratopsian of the late Cretaceous period.

Mussaurus
This "mouse lizard" lived in Triassic South America.

Muttaburrasaurus
The most complete dinosaur fossil ever found in Australia.

Mymoorapelta
This ankylosaur was named after the Mygatt-Moore quarry in Colorado.

Nanosaurus
This "tiny lizard" was named by Othniel C. Marsh.

Nanyangosaurus
An iguanodontid ornithopod of early Cretaceous Asia.

Nasutoceratops
This dinosaur has horns like a modern steer.

Nebulasaurus
This "nebula lizard" was recently discovered in China.

Neimongosaurus
A rare therizinosaur from inner Mongolia.

Nemegtosaurus
This titanosaur has been reconstructed from a single, incomplete skull.

Neuquensaurus
Was this titanosaur really a species of Saltasaurus?

Nigersaurus
This African sauropod had a huge number of teeth.

Nipponosaurus
This hadrosaur was discovered on the island of Sakhalin.

Nodocephalosaurus
This armored dinosaur has been reconstructed from a single skull.

Nodosaurus
One of the first armored dinosaurs ever discovered in North America.

Nothronychus
The first therizonosaur to be found outside Asia.

Notohypsilophodon
A rare South American ornithopod.

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.

Oohkotokia
Its name is Blackfoot for "large stone."

Opisthocoelicaudia
A clumsily named titanosaur of the late Cretaceous period.

Ornithopsis
This "bird face" was actually a genus of titanosaur.

Orodromeus
This tiny herbivore was on Troodon's dinner menu.

Orthomerus
One of the few dinosaurs to be discovered in Holland.

Oryctodromeus
The only ornithopod known to have lived in burrows.

Othnielia
A small, fast herbivore of the late Jurassic.

Othnielosaurus
Named after the famous paleontologist Othniel C. Marsh.

Ouranosaurus
Scientists can't decide if this herbivore had a sail or a hump.

Overosaurus
This dwarf titanosaur was announced to the world in 2013.

Pachycephalosaurus
This plant-eater gave new meaning to the word "blockhead."

Pachyrhinosaurus
This "thick-nosed lizard" roamed the North American forests.

Palaeoscincus
This "ancient skink" was actually an armored dinosaur.

Paluxysaurus
A contender for the official Texas state dinosaur.

Panamericansaurus
This titanosaur was named after an energy company.

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-whats.

Paralititan
This huge titanosaur was discovered recently in Egypt.

Paranthodon
This stegosaur was discovered over 150 years ago.

Pararhabdodon
The western European equivalent of Tsintaosaurus.

Parasaurolophus
Probably the loudest dinosaur that ever roamed the earth.

Parksosaurus
It was once classified as a species of Thescelosaurus.

Patagosaurus
This "Patagonian lizard" hailed from South America.

Pawpawsaurus
This ancient nodosaur was discovered in Texas.

Pegomastax
This dinosaur was covered with porcupine-like bristles.

Peloroplites
This "monstrous Hoplite" was recently discovered in Utah.

Pelorosaurus
This "monstrous lizard" was 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.

Pinacosaurus
Did this ankylosaur roam central Asia in herds?

Pisanosaurus
One of the earliest known ornithischian dinosaurs.

Planicoxa
A medium-sized iguanodont of early Cretaceous North America.

Plateosaurus
This herd dinosaur blackened the plains of the late Triassic.

Pleurocoelus
The official state dinosaur of Texas.

Polacanthus
An extremely spiky ankylosaur of the middle Cretaceous.

Prenocephale
This "bonehead" had a round, thick skull.

Prenoceratops
A close relative of Leptoceratops.

Proa
This ornithopod was named after its prow-shaped jaw.

Probactrosaurus
An early stage in hadrosaur evolution.

Propanoplosaurus
This baby ankylosaur was recently discovered in Maryland.

Prosaurolophus
The likely ancestor of both Saurolophus and Parasaurolophus.

Protoceratops
A famous plant-eater with a very funky frill.

Protohadros
Despite its name, it wasn't really the "first hadrosaur."

Psittacosaurus
This low-slung dinosaur's noggin wouldn't have looked out of place on a parrot.

Puertasaurus
This titanosaur rivaled Argentinosaurus in size.

Qantassaurus
Named after the national airline of Australia.

Qiaowanlong
An Asian relative of Brachiosaurus.

Quaesitosaurus
This titanosaur may have had unusually sharp hearing.

Rapetosaurus
The only sauropod ever to be discovered on modern-day Madagascar.

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.

Riojasaurus
One of the few prosauropods known to have lived in South America.

Rubeosaurus
A ceratopsian dinosaur from the Two Medicine Formation.

Saichania
This ankylosaur's name is Chinese for "beautiful."

Saltasaurus
The first armored sauropod ever to be discovered.

Sarahsaurus
This prosauropod had unusually strong hands.

Sarcolestes
The most likely ancestor of the ankylosaurs.

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.

Sauroposeidon
One of the tallest dinosaurs ever to walk the earth.

Scelidosaurus
Among the earliest of all the armored dinosaurs.

Scutellosaurus
Probably the smallest of all the armored dinosaurs.

Secernosaurus
The first hadrosaur to be discovered in South America.

Seismosaurus
It was huge, to be sure--but might it have been a species of Diplodocus?

Seitaad
This small dinosaur may have been buried in an avalanche.

Sellosaurus
Another early prosauropod of the Triassic period.

Shantungosaurus
The biggest of all the duck-billed dinosaurs.

Shunosaurus
Anatomically speaking, the best known of all the sauropods.

Silvisaurus
This primitive nodosaur was discovered in Kansas.

Sinoceratops
A rare ceratopsian from late Cretaceous China.

Sonorasaurus
The remains of this sauropod were found in Arizona.

Sphaerotholus
Yet another dome-headed dino of North America.

Spinophorosaurus
This early sauropod had a "thagomizer" on its tail.

Spinops
This ceratopsian was named 100 years after its bones were found.

Stegoceras
This small herbivore was built for high-speed head-butting.

Stegosaurus
Everything you need to know about this small-brained, spike-tailed dinosaur.

Stenopelix
Experts aren't sure how to classify this dinosaur.

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.

Supersaurus
No, it didn't wear a cape--but this giant dino was still impressive.

Suuwassea
Its name is Native American for "ancient thunder."

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.

Tapuiasaurus
A recently discovered titanosaur from South America.

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.

Tazoudasaurus
This Vulcanodon relative was one of the earliest sauropods.

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.

Tethyshadros
One of the few dinosaurs to be found in modern-day Italy.

Texacephale
This Texan pachycephalosaur was discovered 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 when she saw this dinosaur? "Reaping lizards!"

Thescelosaurus
Did paleontologists find this dinosaur's mummified heart?

Tianchisaurus
This dinosaur's species name honors Jurassic Park.

Tianyulong
Why did this ornithopod have feathers?

Titanoceratops
The biggest of all the horned, frilled dinosaurs.

Titanosaurus
This titanic herbivore may--or may not--have been a unique member of its genus.

Torosaurus
This horned, frilled herbivore was a close cousin of Triceratops.

Triceratops
The famous three-horned plant-eater.

Trinisaura
The first ornithopod ever to be discovered in Antarctica.

Tsintaosaurus
Also known as the "Unicorn Dinosaur."

Tuojiangosaurus
One of the most well-known Chinese stegosaurs.

Tylocephale
The tallest-domed of all the pachycephalosaurs.

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.

Unescoceratops
Named after the United Nation's UNESCO.

Utahceratops
Guess what state this dinosaur was discovered in?

Vagaceratops
This big-frilled dinosaur was closely related to Kosmoceratops.

Valdosaurus
This ornithopod was discovered on the Isle of Wight.

Velafrons
A new addition to the duck-billed dinosaur family.

Vulcanodon
An early sauropod of the Jurassic period.

Wannanosaurus
Probably the smallest of all the bone-headed dinosaurs.

Wintonotitan
Another new titanosaur from Australia.

Wuerhosaurus
Could this have been the last of the stegosaurs?

Xenoceratops
This "alien horned face" was announced in 2012.

Xenoposeidon
Experts aren't sure how to classify this sauropod.

Xiaosaurus
A small ornithopod from late Jurassic Asia.

Xuanhuaceratops
An early ceratopsian of the late Jurassic.

Xuwulong
This iguanodontid ornithopod was recently discovered in China.

Yamaceratops
No, it didn't have a sweet potato for a head.

Yandusaurus
A small ornithopod of middle Jurassic China.

Yimenosaurus
One of the better-known Chinese prosauropods.

Yinlong
This "hidden dragon" was an early ceratopsian.

Yizhousaurus
The earliest intact sauropod yet discovered.

Yongjinglong
This titanosaur was recently discovered in Asia.

Yunnanosaurus
One of the last prosauropods to walk the earth.

Zalmoxes
A strange-looking ornithopod from Romania.

Zhuchengosaurus
This hadrosaur was even bigger than Shantungosaurus.

Zuniceratops
This horned dinosaur was discovered by an eight-year-old boy.

You can opt-out at any time. Please refer to our privacy policy for contact information.

©2014 About.com. All rights reserved.