The "flaws" in the stone are fossils, evidence of sea creatures of stunning antiquity—some dating back nearly half a billion years, when the only existing animals lived in oceans. And what ...

New research by a team at the Russian Academy of Sciences, Harvard University and the Sea ... fossils, which had been previously categorized into distinct size groups, presumed to reflect distinct ...

3 min read During the Ordovician period, part of the Paleozoic ... tiny fossil teeth they left behind. The few complete fossils that have been found suggest they were finned, eel-like creatures ...

The fossils encompass almost all the ancestors of existing species. Liu says that visitors will see how strange animals looked when life was confined to the seas over half a billion years ago.

3 min read The Cambrian period, part of the Paleozoic era ... a wormlike creature that swam in middle Cambrian seas. Fossils found in the Burgess Shale of British Columbia show traces of a ...

DENVER — The Denver Museum of Nature & Science has a new exhibit exploring the depths of prehistoric oceans. Jurassic Oceans: ...

The beginning and end of each chunk of time in the geologic time scale is determined by when some species appeared or disappeared from the fossil record ... The end of the Paleozoic and beginning of ...

South China is renowned for its exceptional fossil preservation and its diverse Early Paleozoic marine ecosystems. Researchers have extensively studied the Ordovician strata in this region ...

Even more astounding, over half of them are entirely new to science. The fossils are what’s left of ancient sea creatures that settled on the seafloor upon death, becoming covered in mud and ...

"Named for its bizarre and dreamlike appearance, after the fossils were discovered in Yunnan, scientists revised the position of the creature's head," Liu adds. The Anomalocaris, a top Cambrian ...