Articles relating to Eupelycosauria, a large clade of animals characterized by the unique shape of their skull, encompassing all mammals and their closest extinct relatives. They first appeared 308 million years ago during the Early Pennsylvanian epoch, with the fossils of Echinerpeton and perhaps an even earlier genus, Protoclepsydrops, representing just one of the many stages in the evolution of mammals.
Subcategories
This category has the following 3 subcategories, out of 3 total.
Pages in category "Eupelycosauria"
The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes.