Confuciusornis sanctus, fossil bird from China Ouranosaurus " said Nizar Ibrahim

" said Nizar Ibrahim

the largest phylum of strictly marine creatures

It is from the Upper Cambrian Age of about 520 million years ago

huge members of the family Castoridae (Rodentia)

Under 5% shrinkage

Confuciusornis sanctus, fossil bird from China Ouranosaurus " said Nizar IbrahimConfuciusornis sanctus ("the sacred bird of Confucius") is the earliest known beaked bird. Discovered in 1994, Confuciusornis represents an important side branch in avian evolution. Though Confuciusornis and its descendants all became extinct, it is the earliest known bird to abandon its reptilian teeth in favor of a light weight keratin beak. Remains of Confuciusornis are found at an Early Cretacaeous fossil site known as Sihetun in the Liaoning