DePaul University’s Kenshu Shimada leads international team in analyzing fossil
Researchers, including DePaul University paleobiologist Kenshu Shimada, found the tiny, hook-shaped teeth of the prehistoric Pseudomegachasma shark in the U.S. and Russia. (Photo courtesy of Kenshu Shimada)
CHICAGO —(ENEWSPF)—September 24, 2015. An international team of scientists has discovered a new lineage of extinct plankton-feeding sharks, Pseudomegachasma, that lived in warm oceans during the age of the dinosaurs nearly 100 million years ago. The fossil sharks…
