Pycnonemosaurus nevesi is a species of theropod dinosaur in the family Abelisauridae.
A vermiform (name meaning “worm-like”) is a type of plant which lived during the Jurassic period. Behind the Scenes This…
Alamosaurus sanjuanensis is a species of sauropod dinosaur in the family Saltasauridae.
Ophthalmosaurus icenicus is a species of marine ichthyosaur in the family Ophthalmosauridae.
Mixosaurus cornalianus is a species of marine ichthyosaur in the family Mixosauridae.
Chaohusaurus geishanensis is a species of marine ichthyopterygian in the family Grippiidae.
Plesiosaurus dolichodeirus is a species of marine plesiosaur in the family Plesiosauridae.
Nipponosaurus sachalinensis is a species of hadrosaurid dinosaur in the subfamily Lambeosaurinae.
Lesothosaurus diagnosticus is a species of ornithopod dinosaur in the clade Genasauria.
Hoplitosaurus marshi is a species of ankylosaur in the family Nodosauridae.
Elaphrosaurus bambergi is a species of theropod dinosaur in the family Noasauridae.
Deinonychus antirrhopus is a species of theropod dinosaur in the family Dromaeosauridae.
Nothosaurus giganteus is one of the largest species of Nothosaurus, a genus of semi-aquatic reptile in the family Nothosauridae. This…
An unnamed species of locust-like grasshopper is known from the Maastrichtian age in the late Cretaceous period, about 66 million…
An undescribed species of prehistoric lamprey approximately 5 feet (1.5 meters) long has been reported among various de-extinct species. It…
Lystrosaurus curvatus is a species of dicynodont in the family Lystrosauridae, known from 255 to 250 million years ago (the…
Dimetrodon grandis is a species of sail-backed synapsid, originally formally described in 1907. D. grandis inhabited lived early Permain period,…
Moros intrepidus is a species of primitive tyrannosauroid, the earliest of its kind yet discovered. This small animal first lived…
Quetzalcoatlus northropi is a species of very large pterodactyloid pterosaur in the family Azhdarchidae. It is one of the largest…
Therizinosaurus, name meaning “scythe reptile” for its huge claws, is a genus of very large theropod in the family Therizinosauridae.…
