Primitive four-legged animals, the ancestors of Amphibians, Reptiles, Synapsids, birds, as part of Reptiles ( Sauropsids), and mammals, synapsids.
This category has the following 7 subcategories, out of 7 total.
The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes.
Primitive four-legged animals, the ancestors of Amphibians, Reptiles, Synapsids, birds, as part of Reptiles ( Sauropsids), and mammals, synapsids.
This category has the following 7 subcategories, out of 7 total.
The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes.