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Platybasic Skull |
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Platybasic Skull
a type of axial skull characteristic of a number of groups of vertebrates, including cyclostomes, many fishes, and amphibians. A platybasic skull is characterized by a broad base and widely separated orbits. The brain cavity extends between the orbits. In mammals, owing to intensive development of the forebrain, the tropibasic skull characteristic of their ancestors converted again into the platybasic skull. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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