1) Early Cretaceous bird of Asia
Found on
https://www.crosswordclues.com/clue/pygostylia
Pygostylia is a group of avialans which includes the Confuciusornithiformes and all of the more advanced birds, the Ornithothoraces. ==Definition== The group Pyostylia was intended to encompass all avialans with a short, stubby tail, as opposed to the long, reptilian tails of more primitive species like Archaeopteryx lithographica. It was named by...
Found on
http://en.wikipedia.org/wiki/Pygostylia
No exact match found.
