BSC-1005 Chapter Notes - Chapter 6-7: Diplodocid, Sauropoda, Saurischia
18 Oct 2016
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This group includes the the long-necked herbivorous sauropods (the largest animals to ever walk the earth) and the meat-eating theropods (the group that includes the smallest known dinosaurs and the mighty t. rex). The pubis points forward (as in the hips of lizards today) Long neck (at least 1/3 the length from spinal column to the hip) Lived from the late triassic period to the end of the cretaceous period. Extremely elongated necks composed of at least 10 vertebrae. The extinction of the prosauropods during the early jurassic was the first loss of a major group of dinosaurs. There were are least five major groups of these animals: Diplodocids were some of the longest dinosaurs ranging up to 140 feet. Most famous diplodocid is the apatosaurus named in 1877 by. Marsh found another, thought it was different, and named it. Remains of an amphicoelia may have been the largest sauropod ever. Some think it just crumbled over the years.
