suggesting that dinosaurs were more diverse and widely distributed than previously thought

Se cree que Hesperonychus elizabethae era un cazador terrestre y probablemente vivía en ambientes boscosos o semiabiertos

and the Archelons seem to be in their element

Su constitución era adaptada a un estilo de vida terrestre

allowing it to "fly" underwater with a combination of power and control very similar to that of modern penguins or sea turtles

Deinosuchus / Kritosaurus Variant:Unprimed suggesting that dinosaurs were moreEcological interactions and morphology of Deinosuchus and Kritosaurus during the Late Cretaceous of North America During the Late Cretaceous, approximately 8273 million years ago, the ecosystems of western North America supported significant faunal diversity, with the coexistence of two iconic genera: Deinosuchus , a large crocodilian, and Kritosaurus , a widespread herbivorous hadrosaurid. The combined study of both taxa provides a comprehensive view