Paleontologists have described a new genus and species of stem-chelydrid turtle using complete fossilized shells and associated material found in the Early Paleocene Denver Formation in Colorado. A reconstruction of Tavachelydra stevensoni basking on a log in a ponded water environment. Image credit: Andrey Atuchin. Tavachelydra stevensoni lived in what is now the United States during the earliest Paleocene epoch, between 66 and 65 million years ago...
