ERTH 2401 Lecture Notes - Lecture 9: Headbutt, Marginocephalia, Wannanosaurus
24 Oct 2016
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Document Summary
Skull: dome like structure; biases fossil record the dome is well-preserved, not finding much of the other animal. Reconstruction: front limbs are shorter and smaller, bipedal gate. Cladogram: ornithischian genasauria ceropoda marginocephalia . Brain is small compared to very large skull structure. Rudimentary fossil record; lots of finds but mainly the domes (preserve well) not with rest of. Ornamented skull skeleton (cid:1005)(cid:1012)5(cid:1004)"s stenopelix found in lower cretaceous (germany) skull is lacking and its position in. Marginocephalia is still uncertain (possibly ceratopsian) not very complete. Late (cid:1005)(cid:1012)(cid:1004)(cid:1004)"s first cranial fragments found in western us by leidy and marsh not properly identified. 1902 first dome discovered by lambe (alberta) stegoceras. 1924 first and only really complete stegoceras described by gilmore. Skull and partial skeleton was only 2m in length (short) Picture of stegoceras high dome, eye structure protected by over hanging bone.
