Top of the encrusted surface of a brachiopod shell, showing the "war" between an edrioasteroid (star-shaped organism at center) and a fast-growing bryozoan colony. From Sprinkle and Rodgers 2010. Back ...

Four bivalve specimens from Antarctica’s Seymour Island analyzed in the University of Michigan study, showing the range of sizes of the different mollusks. Species names clockwise from the top shell: ...

ALTHOUGH Wells 1 and Scrutton 2 suggested methods of studying fossils to determine probable changes in day length, few studies have followed these suggestions. We have examined fossil bivalve shells ...

The fossil record may not be perfect, but it passed a critical test with flying colors, according to a study by University of Chicago paleontologist Susan M. Kidwell published in the Feb. 11 issue of ...

A new paleontology study by UChicago researchers discovered that rock-boring clams, known as bivalves, vary in shape despite performing the same function. This paper is one of the first major studies ...

The kelp forests that hug the Pacific coastline are an underwater jungle, a thicket of colossal algae intermixed with a pageant of life - snails, urchins, sea lions, sea otters. Now there's new proof ...

Time isn’t as constant as we might think. The Earth’s rotation is changing, which affects how many hours are in a day and how many days in a year. Now palaeontologists have managed to precisely ...

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 ...