A new study by Case Western Reserve University Ph.D. student Russell Engelman published in PeerJ attempts to address a persistent problem in paleontology—what were the size of Dunkleosteus and other ...

Ancient armored fish fossils from Australia present some of the first definite fossil evidence of a forerunner to the human eye. Researchers analyzed the fossilized remains of 400-million-year-old ...

More than eight decades ago, pioneering Museum of Northern Arizona geologist Major L.F. Brady made a surprising find in ...

Ancient placoderms evolved different jaw designs for crushing or breaking hard prey, depending partly on predator-prey size ...

Almost all gnathostomes or jawed vertebrates (including osteichthyans, chondrichthyans, ‘acanthodians’ and most placoderms) possess paired pectoral and pelvic fins. To date, it has generally been ...

A pregnant fossil fish at the Natural History Museum in London has shed light on the possible origin of sex, according to a new study. Dating from the Upper Devonian period 365 million years ago, the ...

Add Yahoo as a preferred source to see more of our stories on Google. Dunkleosteus ruled a restless Devonian ocean, where armor met innovation. Here's how modern science is rewriting the story of this ...

During the Devonian period, trees began to populate the Earth. But they also created soil, and the runoff changed the chemistry of the oceans. The evolution of some of the very species that now ...