An undescribed species of grass (family Poaceae) inhabited an ecosystem in southern North America during the Maastrichtian age of the…
The megalodon (Otodus megalodon) is a species of very large mackerel shark in the megatooth shark family, Otodontidae. It originally…
Thanatosdrakon is a genus of large azhdarchid pterosaur in the subfamily Quetzalcoatlinae. Originally, it lived during the Coniacian and Santonian…
Gigantoraptor is a genus of large oviraptorosaurian theropod in the family Caenagnathidae. It originally lived during the Cenomanian age of…
Dunkleosteus terrelli is a species of large arthrodire placoderm fish in the family Dunkleosteidae. Its genus originally lived between 382…
Shonisaurus sikanniensis is a genus of extremely large ichthyosaur in the family Shastasauridae. It originally lived during the Norian age…
Archelon ischyros is a species of very large sea turtle in the family Protostegidae. It originally lived during the Campanian…
Tempskya is a genus of leptosporangiate tree ferns in the family Tempskyaceae. This genus originally lived from the Valanginian to…
Calamites is a genus of tree-like horsetails in the family Calamitaceae. This genus existed from 360 to 300 million years…
Yutyrannus huali is a species of medium-sized tyrannosauroid dinosaur in the family Proceratosauridae. It originally lived about 125 million years…
Sinosauropteryx prima is a species of very small theropod dinosaur in the family Compsognathidae. It originally lived between 124.6 and…
Jeholopterus is a species of small pterosaur in the family Anurognathidae. It originally lived between 168 and 160 million years…
Deinocheirus mirificus is a species of very large ornithomimosaur in the family Deinocheiridae. It originally lived about 70 million years…
Barbaridactylus grandis is a species of medium-sized pterodactyloid pterosaur in the family Nyctosauridae. It originally lived about 66 million years…
Australovenator is a genus of medium-sized theropod dinosaur in the family Megaraptoridae. It originally lived about 95 million years ago,…
Styxosaurus snowii is a species of large plesiosaur in the family Elasmosauridae. It originally lived during the Santonian and Campanian…
Judiceratops tigris is a species of medium-sized ceratopsid dinosaur in the subfamily Chasmosaurinae. It is the earliest known member of…
Yamaceratops dorngobiensis is a species of small, primitive ceratopsian dinosaur in the infraorder Neoceratopsia. It originally lived about 85 million…
Yinlong is a genus of small, very primitive ceratopsian dinosaur in the family Chaoyangsauridae. Originally living about 158 million years…
Auroraceratops is a genus of primitive ceratopsian dinosaur in the clade Neoceratopsia. It originally lived during the Aptian age of…
