BSC-1005 Chapter Notes - Chapter 3: The Possession, Platypus, Stegosauria

• School: FSU
• Department: Biological Science
• Course: BSC-1005
• Professor: G.Bates, G.Erickson, S.Lenhert, C.Schultz, H.Tang, C.Schultz

Document Summary

Ornithischians (with hips shaped like those of living birds- although they are not. Saurischians (characterized by lizard-like hip bones, this group includes meat- Two types of dinosaurs: eaters like t. rex and the herbivorous long-necked sauropod giants) closely related to birds, the group includes the herbivorous armored dinosaurs, the horned dinosaurs, the duck-bills, and the bizarre head-ramming pachycephalosaurs, and others). The first ornithischians that appeared in the middle triassic period were relatively small, bipedal animals. Had the three key features of a dinosaur. A jaw-joint that aids that process of plants. An early offshoot of the ornithischian lineage was the thyreophora (= shield bearers )- the armored dinosaurs. The possession of armor in their skin. These bones in the skin are referred to as osteoderms. The distinguishing attribute of the stegosaurs is: Considered some of the least intelligent of dinosaurs. Plates and spikes along or beside the backbone. Had enormous plates and and two sets of spikes on its tail.