Here is a well preserved fossil frog from Liaoning province in China. The Callobatrachus Sanyanensis is a rare species as it is a frog that lived about 145 million years ago.

Callobatrachus Sanyanensis

Early cretaceous(120-133 mil y)

Yixian Formation, Jinzhou, Liaoning Province, China

210 mm - 8.3"

Very good