Thank goodness it’s #FossilFriday! Meet a 1.3 million year old ground sloth, Megalonyx wheatleyi. It’s name means “great claw” and it was collection in Williston, Florida in 1941. 

About 9 million years ago, before the Isthmus of Panama had formed, megalonychid ground sloths crossed from South America to North America. Megalonyx wheatleyi was the result of almost 8 million years of sloth evolution on the North American continent. Extinct ground sloths were much larger than their living, tree-dwelling relatives, but like them, they were plant eaters. 

See this fossil in the Museum’s Hall of Primitive Mammals