The late Devonian extinction, about 370 million years ago, is one of the 'Big Five.' It killed up to 80 percent of species, obliterating the lavish Devonian coral reef ecosystem. The final pulse in ...
The newest exhibit at The Academy of Natural Sciences of Drexel University will give visitors a glimpse into the world millions of years ago. "Life Onto Land: The Devonian" centers around the crucial ...
Human beings have existed for 300,000 years and have managed to live in many unstable environments. We’ve survived ice ages, ...
Recent reports on the successful development of Devonian organic shale reservoirs in southwestern Pennsylvanian and adjacent West Virginia have raised the speculation about this reservoir. Both the ...
The ravine at Shale Hollow Preserve is a gray, red, orange and brown stack of shale that resembles a pile of papers. The wall, which borders Big Run Creek, mostly is uniform — row after row of flaky ...
THE tract of Devonian rocks which stretches through the north of France and Belgium, and across Rhenish Prussia into Westphalia and Nassau, has furnished ample materials for geological disquisition.
Most scientists think the dinosaurs — along with countless other creatures — were wiped out some 66 million years ago when a space rock slammed into Earth. But a cosmic impact isn’t the only disaster ...
A small collection of Upper Devonian conodonts from Cottonwood Canyon on the west side of the Bighorn Mountains, Wyoming, is describe.d The majority of the species are the same as those reported from ...
Klipbokberg, Grootrivierhoogte, in the Cederberg. These mountains contain clues about ancient landscapes. Cameron Penn-Clarke The Earth was a very different place 400 million years ago, during what’s ...
M. P. VENUKOFF has recently given a general sketch of o the Devonian rocks of Russia. As is well known, these rocks, so largely developed in Russia, contain such a peculiar fauna that geologists have ...
The first African fossils of Devonian tetrapods (four-legged vertebrates) show these pioneers of land living within the Antarctic circle, 360 million years ago. The first African fossils of Devonian ...