The fossil remains of Genyornis newtoni

and that its growth was slower than that of other theropods from different families

It was an animal completely adapted to marine life and occupied the ecological role of a superpredator in numerous Late Cretaceous ocean ecosystems

Its discovery has significantly expanded our understanding of the diversity and distribution of sauropods in the Early Cretaceous

Fossils of Stegosaurus stenops have been found primarily in North America

Machaeroprosopus buceros Variant:Hand-painted The fossil remains of GenyornisMachaeroprosopus buceros was a Late Triassic pseudosuchian archosaur, belonging to the phytosaur group, which inhabited North America approximately 220 to 210 million years ago. It was a large semi aquatic reptile that occupied ecological niches similar to those of modern crocodiles, although it was not directly related to them, but rather represents a convergent lineage within Archosauria. Its most characteristic feature was its extremely elongated