Like the supposed hooves, today we know that these are the shells of the bivalve Daonella, which are very common in some rocks of the Dolomites. The first scientific mention of fossils from the ...

Not everything dies in a mass extinction. Sea life recovered in different and surprising ways after the asteroid strike 66 ...

Their shells are usually mirror images of each other. The oldest bivalve fossils are over 500 million years old, dating to the Early Cambrian Period. But they are much more common in younger rocks.

In a lesser-traveled corner of Big Bend National Park, scientists are uncovering one of the most detailed records of ancient ...

the first bivalves originated in the Early Cambrian. They are thought to have evolved from ancestors which gradually saw their head reduced over time as they developed a hinged shell. ‘Fossil-bearing ...

For many years, scientists could only turn to fossils ... what the bivalve family tree likely looked like in reality. Then Crouch ran the numbers using the “forking” assumption common to ...

Common discoveries include shark teeth, fossil wood, and plant fossils—including ... Sussex (head here for echinoids, belemnites, and bivalves), while Warden Point on the Isle of Sheppey rounded ...

Fossils from Shishania aculeata indicate that some early mollusks were flat, armored, slug-like creatures that didn’t have the signature shells we see on today’s snails and bivalves.

Newfound fossils of the extinct arthropod Odaraia ... Many arthropods have this taco-like feature, known as a bivalve carapace, “including living arthropods like ostracods (seed shrimp) and ...

"It's not all that common to find alive a species ... check out an intriguing reference to a fossil species. They tracked down illustrations of the bivalve Bornia cooki from the paper describing ...