Since then, modern birds have lost their teeth and powerful jaw muscles and developed lightweight beaks and kinetic skulls. They retained their diapsid skulls (a hallmark of their early reptile ...

In ‘modified diapsid’ condition, bar between two temporal fossae may be lost. Weight of skull is reduced with loss of bars. 1. Lizard has space on side of skull, reflecting loss of second temporal ...

An international team of researchers report on the bird's fully preserved skull. The fossil was unearthed in the 1950s in a former lignite mining area in the Geiseltal in Germany. It was initially ...

and the Senckenberg Research Institute and Natural History Museum in Frankfurt report on the bird's fully preserved skull in the scientific journal "Palaeontologia Electronica". The fossil was ...

The diapsids are a monophyletic group - including the dinosaurs, pterosaurs and marine reptiles of the Mesozoic - the living crocodilians, birds & squamates (lizards and snakes). They are ...