Re-examination of some North American collections of the late middle to early late Norian pterioid bivalve Monotis confirms the separation of M. (M.) alaskana Smith from the European type species M.

Why did the ancestors of clams and oysters flourish after one of the worst mass extinctions in Earth's history while another class of shelled creatures, the brachiopods, sharply decline? By using ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. It’s not a bad time to be a bivalve. Oyster reefs are hailed as ...

An asteroid strike 66 million years ago caused millions of species to go extinct – including many molluscs. By studying the impacts of this ancient event, scientists hope to ensure that mussels, ...

George Gaylord Simpson was one of the first paleontologists to apply survivorship analysis to the study of fossil taxa. His finding that the survivorship curve for extant bivalve genera plotted above ...