Over the course of 14 years, the authors carefully analyzed the skull, including the use of X-ray microscopy to create a 3D model. Its features don't slot neatly into any modern bird family.

A 69-million-year-old skull found in Antarctica has been identified as a relative of geese and ducks, making it the oldest known modern bird. It belongs to a species that was first identified two ...

Skull of ancient bird Vegavis is 69 million years old Key traits define Vegavis as anatomically modern bird Antarctica had a temperate climate during Cretaceous Period Feb 5 (Reuters ...

The portions of the brain responsible for complex cognition and spatial orientation aren't as enlarged as those of modern birds, he says. “Although the cerebrum of Navaornis is greatly expanded ...