BSC-1005 Lecture Notes - Lecture 6: Insular Dwarfism, Amphicoelias, Cetiosaurus
8 Oct 2016
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How are saurischian dinos identified and what is one major group: main feat. A. 2. a) w/ air sac respiration: major group = sauropodomorphs. = extremely elongated necks earliest form = prosauropods. B. 2. a) has jaw set below teeth (b. 2. a. 1) so can"t chew found in large groups. = nostrils on top of heads huge creatures! C. 2. b) so when dug up often incomplete b/c bones are just so big bones are also delicate esp. around neck b/c allowed it to. C. 3. hold up long neck a lot easier five major groups of these! C. 3. b) by late 1800s found vertebrate of biggest dino: C. 3. c) another group = camarosaurids (c. 3. c. 1) where skull for apatosaurus came from when couldnt find its true skull another group = cetiosaurs (c. 3. d. 1) one species, shunosaurus from china, had a tail club brachiosaurs = tallest. C. 3. e) (c. 3. e. 1) but recently found sauropseidon is even bigger at. 56 ft tall! (c. 3. e. 1. a) could not fit in westcott building!
