An article published in the journal “PeerJ” reports a study on the development of the skull structure of Psittacosaurus lujiatunensis during its growth. A team led by Claire Bullar of the British University of Bristol examined dozens of fossils belonging to this species focusing in particular on their skulls to understand their growth. This also offers more information on their locomotion changes since they were born quadrupeds but were bipeds in adulthood.

An article published in the journal “PeerJ” reports the identification of a new species of feathered dinosaur dating back to about 150 million years ago, in the Late Jurassic period, in today’s Wyoming, USA. A team of paleontologists named it Hesperornithoides miessleri and classified it in the troodontid family, dinosaurs with various characteristics similar to birds. This species seems to be a primitive member of that group, an unusual discovery that raises new questions about the timeline of the evolution of birds and of flight in other dinosaurs belonging to groups that got extinct.

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.