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| | South African Museum - Fossil Reptiles of the South African Karoo (Site not responding. Last check: 2007-10-12) |
 | | The Dinocephalia, mentioned earlier, were among the most primitive of the mammal-like reptiles, but some of their features, particularly in the skull, serve to illustrate the fundamental characteristics of mammal-like reptiles. |
 | | A large opening in the temporal region, immediately behind the eye-socket, permitted bulging of the jaw muscles during chewing and biting, and is characteristic of all mammal-like reptiles. |
 | | The Dinocephalia, although primitive members of the mammal-like reptile stock, were therefore altogether distinct from other reptile groups, but it is most unlikely that such mammalian characteristics as hair, mammary glands and 'warm-bloodedness' were present among them. |
| www.museums.org.za /sam/resource/palaeo/cluver/early.htm (1119 words) |
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