A fragment of upper jaw fossil from the Early Cretaceous is among the oldest examples of a toothless amphibian in the fossil record Chihiro Kai The arid valleys of Wyoming’s Cloverly Formation are ...
Researchers studying amphibians in Asia have made an exciting discovery: a new species of frog with teeth, named Limnonectes cassiopeia, has been identified on the island of Luzon in the Philippines.
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