the entire directory only in Vertebrates/Synapsids

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• Ask a Biologist Q&A: Synapsid Skin - Forum thread discussing where the non-mammalian synapsids stand in the transition from reptilian scales to mammalian hair.
• Dicynodontia - Illustration and information on the characters and anatomy, major subgroups, fossil record and evolution of these herbivores.
• Dinocephalia - Illustration and information on the characters and anatomy, major subgroups, fossil record and evolution of these carnivorous therapsids.
• Dkimages: Synapsids - Photographs of several cynodont and therapsid fossils including a reconstructed skeleton of Sinokannemeyeria yinchiaaoensis.
• Fossil Groups: Diapsids - Provides information on this group of amniotes, their characters and anatomy, major subgroups, fossil record, modern forms, literature and weblinks.
• Fossil Groups: Synapsida - Provides information on the characteristics and anatomy of synapsids with a diagram of a typical early period skull showing the synapsid arch and undifferentiated teeth.
• Introduction to the Synapsida - Information on this great vertebrate group with a 300 million year history, their fossil record, life history, ecology, systematics and morphology.
• Mammal-like Reptiles - The Natural History Museum supplies illustrations of Anteosaurus, Cynognathus, Dicynodon, Dimetrodon, Lystrosaurus, Moschops, Oligokyphus and Thrinaxodon, with brief facts about each.
• Synapsid - Information from Wikipedia on this group of reptiles, their changing classification, characteristics and evolutionary history.
• Synapsida: Mammals and Their Extinct Relatives - Information from the Tree of Life Web Project on the synapsids which include mammals and all extinct amniotes more closely related to mammals than to reptiles.

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