Counting calories in the fossil record
Wednesday, March 26, 2014 - 09:00
in Paleontology & Archaeology
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, of brachiopods remain. "Most people won't be familiar with brachiopods. They're pretty rare in the modern ocean," said Jonathan Payne, a paleobiologist at Stanford University.