extending from the neck to the tail and possibly covered in fur or feather-like tissue

where it inhabited what is now Montana

although mainly nocturnal

Las plumas que se han encontrado en los fósiles de Yutyrannus indican que tenía un pelaje primitivo compuesto por plumas primitivas filamentosas

1:35 scale - 160 mm long

Thalassotitan atrox Tylosaurus extending from the neck toThalassotitan, meaning "titan of the seas", is an extinct genus of large mosasaurs (a group of extinct marine lizards) that lived during the late Maastrichtian of the Cretaceous period in what is now Morocco, approximately 66 million years ago. The only known species is T. atrox, described in 2022 from fossils discovered in the Ouled Abdoun Basin, where many other mosasaurs have been found. It was assigned to the tribe Prognathodontini along with