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Dinosaurs

Amurosaurus or "Amur lizard" is a genus of dinosaur of the Late Cretaceous Period which thrived in what is now eastern Asia. It was first described in 1991 by Russian paleontologists Yuri Bolotsky and Sergei Kurzanov. Its name is derived from the Amur ...

Amphicoelias, meaning "doubly hollow", is derived from the Greek words amphi: "on both sides" and koilos: "hollow". It is a genus of sauropod dinosaur. It was first collected by Oramel Lucas in Garden Park, Colorado in 1877. The vertebrae found was in ...

Ampelosaurus or "vine lizard" is a genus of sauropod dinosaur from the Late Cretaceous Period about 74 to 70 million years ago. It lived in what is now Europe. It was first described and named by French paleontologist Jean Le Loeuff in 1995. Ampelosaur...

Amargasaurus or "La Amarga Lizard" is a genus of sauropod dinosaur from the Early Cretaceous Period about 130 to 125 million years ago. It lived in what is now South America. It was coined Amargasaurus because of where it was discovered, the La Amarga ...

Eoraptor was one of the world's earliest known dinosaurs. It lived between 230 and 225 mya (million years ago), in what is now known as Argentina. Several well-preserved skeletons have been found and it is believed that the Eoraptor resembles the commo...

Eocursor or "dawn runner" was a primitive genus of dinosaur which lived during the Late Triassic Period (210 mya). It lived in what is now South Africa. Its remains have been discovered in the Lower Elliot Formation and are the most complete known foss...

Elaphrosaurus or "lightweight lizard" is a genus of carnivorous dinosaur from the Late Jurassic Period. It lived in what is now the Kimmeridgian state of Tanzania. Its skeleton was found in the Tendaguru Beds of Tanzania. A related animal was found in ...

Euhelopus or "marsh foot" is a genus of dinosaur that lived during the Early Cretaceous Period, 130 to 112 mya. It lived in what is now Shandong Province in China. It was originally named Helopus 1929, but since this name already belonged to a bird, it...

Erlikosaurus is a genus of dinosaur from the Late Cretaceous Period about 80 mya. Its fossils were discovered in the Bayan Shireh Formation of Mongolia. The type species E. andrewsi was described by Altangerel Perle in 1980. Its name is derived from th...

Epidexipteryx, meaning "display feather", is a genus of maniraptorian dinosaur from the Middle or Upper Jurassic Period (152-168 mya) that was found in what is now Inner Mongolia, China. The specific name, E. hui, commemorates paleomammologist Hu Yaomi...

Eotriceratops or "dawn three-horn face" is a genus of ceratopsian dinosaur from the Late Cretaceous Period. Its fossils were discovered in the Horseshoe Canyon Formation. The skull of the Eotriceratops is believed to be about 10 feet long. Accordin...

Pachyrhinosaurus, meaning "thick-nosed reptile" was a genus of ceratopsian dinosaur which existed during the Late Cretaceous Period of North America. It was first discovered by Charles M. Sternberg in Alberta, Canada in 1946. It was named in 1950. Twel...

Monoclonius, meaning "single stem", was a ceratopsian dinosaur from the Late Cretaceous Period. It was discovered at the Judith River Formation in Montana. The name monoclonius is derived from the single root system of its teeth. Monoclonius was first ...

Einiosaurus, meaning "forward-curved horn", was a medium-sized centrosaurine dinosaur from the Upper Cretaceous Period. It was discovered in the Two Medicine Formation of northwestern Montana. Roughly 15 individuals were discovered by Jack Horner in 19...

Centrosaurus, or the "Pointed Lizard", was an herbivorous ceratopsian dinosaur that lived in the Late Cretaceous Period of North America (about 75 million years ago). This dinosaurs name refers to the small horns placed along the margin of the frill, n...

Brachyceratops, or the "short horn-face" is a genus of dinosaur from the Late Cretaceous Period. Its fossils have been found in Alberta, Canada and Montana, USA. It has proven difficult to make an exact model of an adult specimen as only juvenile fossi...

Avaceratops, or the "Ava horned face", lived during the Late Cretaceous Period, and is a genus of small ceratopsian dinosaur. They were found in what is now the Northwestern United States. It was first discovered in the Judith River Formation of Montan...

Albertaceratops, or the "Alberta horned face" was a genus of dinosaur from the middle Campanian-age / Upper Cretaceous Period. It was discovered in the Oldman Formation of Alberta, Canada, and the Judith River Formation of Montana, USA. This dinosaur w...

Achelousaurus (Achelous's lizard) is a genus of dinosaur that lived in what is now North America during the Late Cretaceous Period. The genus was named by paleontologist Scott Sampson in 1995. The type species is A. horneri. The specific name, horneri,...

Liaoceratops, the "Liao Horned Face", is a newly discovered dinosaur that lived in the early Cretaceous period some 130 million years ago. It was discovered by a team of American and Chinese scientists in China. It is believed to be an early ancestor o...