Latest Brachiopod Stories
Chuck Bednar for redOrbit.com - @BednarChuck New evidence of severe losses in brachiopods in the northern Boreal latitudes around the island of Spitsbergen suggest that the controversial Capitanian extinction event that occurred about 262 million years ago should be classified as a true “mass extinction” event. Previously, the Capitanian extinction event was known only from equatorial settings, and thus its status as a full-fledged global crisis was controversial. However, the...
The Society for Sedimentary Geology (SEPM) announces an unusual paper in their journal PALAIOS that combines ‘forensic’ paleontology and archeology to identify origins of the millstones commonly used in the 1800’s.
About 250 million years ago, brachiopod groups largely disappeared along with 90 percent of the planet’s species. However, during this time bivalves flourished, branching out into a variety of shapes and sizes and spreading into freshwater habitats.
A new study tells the story of an invasion and domination that took place around 450 million years ago in North America.
A basic tenet underpinning scientists' understanding of extinction is that more abundant species persist longer than their less abundant counterparts, but a new University of Georgia study reveals a much more complex relationship.
Researchers use a ground-breaking technique that reveals a relationship between cooler temperatures and Earth's second largest mass extinction, which occurred about 450 million years ago.
An influx of invasive species can stop the dominant natural process of new species formation and trigger mass extinction events.
By Novack-Gottshall, Philip M Abstract.- The process of evolution hinders our ability to make large-scale ecological comparisons-such as those encompassing marine biotas spanning the Phanerozoic-because the compared entities are taxonomically and morphologically dissimilar.
In the classic textbook example, predators and prey are locked in an escalating evolutionary arms race. As prey develop defenses against their attackers, predators go them one better, devising new ways of penetrating their victims' defenses.
A study of fossils from the Paleozoic Era, collected across the world, reveals that ancient brachiopods were little bothered by predators. However, the rare predation traces left on brachiopod shells by unknown assailants coupled with a subtle increase in their frequency through time may be the shadows on the wall that show killers were in the room and their numbers increased with time.
Sharpirhynchia sharpi is a species of extinct brachiopod named after fossil collector Samuel Sharp (1814-1882). This species lived during the Lower Bathonian of the Middle Jurassic Period. It is found only in the United Kingdom, and numerous specimens have been taken from several sites, the first from Limekiln Quarry in Northampton, England. S. sharpi is roughly a half-inch long, with a slender beak and 21 to 31 ribs fanning out from the hinge. This lampshell brachiopod lived life as a...
Somalirhynchia africana is a species of brachiopod in the Tetrarhynchiidae family. This marine rhynchonellate lampshell lived during the Late Jurassic Period in the Ethiopian Faunal Province, which today consists of Ethiopia, Somalia, Jordan, Yemen, Kenya, Madagascar, Saudi Arabia, and Tunisia. This species also occurred in India. During the Upper Jurassic, this species would have been found in tropical, shallow, coral seas, where it lived as a stationary epifaunal suspension feeder. S....
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