News tagged with mass extinction

Related topics:

Counting calories in the fossil record

Starting about 250 million years ago, at the end of the Permian period, brachiopod groups disappeared in large numbers, along with 90 percent of the planet's species. Today, only a few groups, or genera, ...

Mar 26, 2014
4.5 / 5 (2) 0

Fossil finds help fill in Romer's Gap

(PhysOrg.com) -- A collection of new fossil finds in Scotland that date back to the 15 million year period between 345 and 360 million years ago are helping to fill the almost blank fossil record during a ...

Mar 06, 2012 report
3.1 / 5 (9) 4 | with audio podcast