Paleontologists have hypothesized for decades that a major animal group called Ecdysozoa must be older than the Cambrian period, but until now its origins...
Paleontologists have examined new microfossils of a Cambrian microscopic animal called Saccorhytus coronarius, which was previously interpreted as a deuterostome,...
Paleontologists from the University of Toronto and the University of Cambridge, UK, have found that a weird creature from 505 million years ago, known...
