Lungfish tooth plates have been known from Cretaceous deposits at Lightning Ridge and nearby opal fields since 1914. These specimens are reasonably complete, and assigned to a common Mesozoic genus, ...

Experts have uncovered the earliest known example of a fish with extra teeth deep inside its mouth—a 310-million-year-old fossilized ray-finned fish that evolved a unique way of devouring prey.

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 ...

An extinct species of lungfish discovered in Zimbabwe could mark the beginnings of a sea change in our understanding of the animals. Close examination of Ferganoceratodus edwardsi suggests that many ...