Therapsids were synapsids that began to appear in the Early Permian. They had larger temporal fenestrae (openings of the sides of the skull) than the ancestral pelycosaurs. The most advanced therapsids are the cynodonts, which include mammals. Mammals are the only extant therapsids.
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Subcategories
This category has the following 9 subcategories, out of 9 total.
Pages in category "Therapsids"
The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes.