The bivalves appear to have been left behind in history’s biggest ever burst of evolution.. Over 500 million years ago, the Cambrian explosion was a period of time when most of the major groups of ...

Known as the Cambrian Explosion, this dramatic episode saw the emergence of many forms of life that persist today. Among these were the bivalves—hard-twin-shelled organisms that live on the seafloor.

Known as the Cambrian Explosion, this dramatic episode saw the emergence of many forms of life that persist today. Among these were the bivalves—hard-twin-shelled organisms that live on the ...

A recent study published in Biology Letters examines how the evolution of bivalves—which are a class of invertebrates frequently comprised of oysters, clams, scallops, and mussels—might have ...

The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The Cambrian Explosion saw an incredible diversity of life emerge, including many major ...

As bivalves have overcome these destructive episodes before, ... Cambrian explosion may have occurred 15 million years earlier than previously thought. Jun 26, 2025.

This finding, together with careful molecular clock analysis, prompts re-interpretation of many important but controversial Cambrian fossils that show similarities to both bivalves and scaphopods.

All of this biodiversity developed very quickly during the Cambrian Explosion. This event about 530 million years ago was when all of the major groups of animals were rapidly diversifying.

A new study examined how bivalves -- the group that includes clams, mussels, scallops, and oysters -- evolved among many others in the period of rapid evolution known as the Cambrian Explosion.