Blogs about dinosaurs

New clues that the origin of plumage goes back to at least 250 million years ago

An article published in the journal “Trends in Ecology & Evolution” reports new clues about the origin of plumage that confirm that it evolved starting from about 250 million years ago among some life forms that survived the devastating mass extinction that occurred at the end of Permian period. A team of researchers coordinated by the British University of Bristol combined information regarding fossils with others obtained through molecular biology analysis to obtain a conclusion that confirms a hypothesis made after the discovery of feathered pterosaurs.

Phuwiangvenator yaemniyomi and Vayuraptor nongbualamphuensis were two distant relatives of T.rex

An article published in the journal “Acta Palaeontologica Polonica” reports the identification of two new species of dinosaurs that lived in present-day Thailand, in the Sao Khua Formation, in the Lower Cretaceous period, about 125 million years ago. A team of researchers named the two species Phuwiangvenator yaemniyomi and Vayuraptor nongbualamphuensis, classified in the group of coelurosaurs, distant relatives of the T.rex even if with more primitive physical structures but good enough to make them efficient predators too.