Paleontologists from China, the United States and United Kingdom have discovered a 3-inch-long fossil of a prehistoric shrimp-like animal with the earliest known cardiovascular system. Dorsal view of Fuxianhuia protensa. Image credit: Xiaoya Ma. The fossil belongs to Fuxianhuia protensa, an extinct arthropod that lived in what is today Yunnan province in China during the Cambrian period, about 520 million years ago. “This is the first preserved...
