Xiphactinus audax / Hesperornis Nasutoceratops the last and largest of

the last and largest of the entelodontids that lived between 29 and 19 million years ago

indicating that it fed mainly on vegetation

Its grayish scaly skin stands out against the surrounding greenery

El descubrimiento de Citipati osmolskae ha sido fundamental para entender mejor la evolución de las aves y su comportamiento reproductivo

Xiphactinus audax / Hesperornis Nasutoceratops the last and largest ofXiphactinus audax was a prehistoric carnivorous fish that lived during the Cretaceous period, approximately 85 million years ago. Known for its imposing size and ferocity, Xiphactinus was one of the largest marine predators of its time, reaching lengths of up to 5. 5 meters. Its fusiform and streamlined body, along with its large jaws full of sharp teeth, made it a formidable hunter in the warm, shallow seas it dominated. Its diet consisted mainly of