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Dinosaurs

Rajasaurus, meaning “Kingly lizard,” is a genus of abelisaurian theropod dinosaur that lived on the land masses associated with the super-continent Gondwanaland. The first fossils were discovered by Suresh Srivastava from the Geological Survey of I...

Tyrannosaurus, meaning “tyrant lizard,” was a genus of theropod dinosaur from the Late Cretaceous Period (68 to 65 million years ago). It was among the last non-avian dinosaurs to exist prior to the Cretaceous-Tertiary extinction event.

Massospondylus, meaning “longer vertebrae,” is a genus of prosauropod dinosaur from the Hettangian to Pliensbachian ages of the Early Jurassic Period (200 to 183 million years ago). Massospondylus was discovered in 1853 by J.M. Orpen in the Upper E...

Abrosaurus, meaning “delicate lizard,” is a genus of sauropods dinosaur from the Bathonian to Callovian stages of the Middle Jurassic Period of what is now Asia (168 to 161 million years ago). It is one of many dinosaurs unearthed at the Dashanpu Q...

Majungasaurus, meaning “Mahajanga lizard,” is a genus of abelisaurid theropod dinosaur from the Late Cretaceous Period of what is now Madagascar (70 to 65.5 million years ago). The type species is M. crenatissimus. Majungasaurus was first descr...

Parasaurolophus, meaning “near-crested lizard,” is a genus of ornithopod dinosaur from the Late Cretaceous Period of what is now North America (76 to 73 million years ago). This genus is based on a skull and partial skeleton missing most of the tai...

Psittacosaurus, meaning “parrot lizard,” is a genus of ceratopsian dinosaur from the Early Cretaceous Period of what is now Asia (130 to 100 million years ago). It is the most species-rich dinosaur genus with nine to eleven recognized species from ...

Plateosaurus, meaning “Broadway lizard,” is a genus of plateosaurid dinosaur from the Late Triassic Period (216 to 199 million years ago), which lived in what is now Central and Northern Europe. It is a primitive sauropodomorph dinosaur. There are ...

Iguanodon, meaning “Iguana tooth,” is a genus of ornithopod dinosaur known from the Kimmeridgian age of the Late Jurassic Period to the Cenomanian age of the Late Cretaceous Period. It lived in Asia, Europe and North America. Research in the early ...

Scelidosaurus, meaning “limb lizard,” is a genus of herbivorous dinosaur from the Hettangian and Sinemurian stages of the Early Jurassic Period (208 to 194 million years ago). Its fossils have been discovered in both England and the United States -...

Sinornithosaurus, meaning “Chinese bird-lizard,” is a genus of feathered dromaeosaurid dinosaur from the early Aptian age of the Early Cretaceous Period (120 - 125 million years ago). It lived in what is now China and was the fifth non-avian feathe...

Protoceratops, meaning “first horned face,” is a genus of herbivorous ceratopsian dinosaur from the Campanian stage of the Late Cretaceous Period (83 to 70 million years ago) in what is now Mongolia. The first specimen was discovered by photographe...

Torosaurus, meaning “perforated lizard,” is a genus of ceratopsid dinosaur from the late Maastrichtian stage of the Late Cretaceous Period (70 to 65 million years ago). Torosaurus is often mis-referred to as “bull” (from the Latin word taurus) ...

Troodon, meaning “wounding tooth,” is a genus of bird-like dinosaur from the Late Cretaceous Period (76 to 65 million years ago). Troodon was discovered in 1855 in North America and was one of the first dinosaurs found there. Fossils of this specim...

Diplodocus, meaning “double beam,” is a genus of diplodocid sauropod dinosaur from the Late Jurassic Period of what is now western North America (about 150 million years ago). The first fossils of this dinosaur were discovered in 1877 by S.W. Willi...

Irritator lived during the Albian stage of the Cretaceous Period around 110 million years ago and is a genus of spinosaurid dinosaur. It was estimated to be about 26 feet long with an unusually shaped crest at the rear of its head. According to researc...

Gryposaurus, meaning "hooked-nosed lizard," is a genus of duckbilled dinosaur from the late Santonian to late Campanian stages of the Late Cretaceous Period (83 to 75.5 million years ago). It lived in what is now North America. It is known from the Din...

Tianyuraptor, meaning "Tianyu thief," is a genus of dromaeosaurid dinosaur from the Barremian and Aptian stages of the Early Cretaceous Period (129 to 122 million years ago). It was discovered in western Liaoning, China in the Dawangzhangzi Bed of the ...

Sinocalliopteryx, meaning "Chinese beautiful feather," is a genus of compsognathid dinosaur from the Early Cretaceous Period (124.6 million years ago) from China. It was recovered from the Jianshangou beds of the Yixian Formation. The type species, S. ...

Tianyulong, meaning "Tianyu dragon," is a genus of heterodontosaurid ornithischian dinosaur from the Late Jurassic Period (155 million years ago). It's fossils were recovered from the Tiaojishan Formation in Jianchang County, Western Liaoning Province,...