EAS-E 114 Lecture Notes - Lecture 11: Ornithischia, Stegosauria, Ankylosauria
25 Sep 2018
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Major amniote groups: names of 3 amniote groups, joints, sutures, temporal fenestrae: Temporal fenestrae: openings in the skull roof behind the eyes. Sh, amphibians, and its present in the early reptiles. 2 advanced reptiles: dinos, lizards, snakes(advance d condition. Sutures: allow little to no movement between bones. Experiments: bones grow thicker in stressed area of skull. *between stressed areas, bone is thin or absent (hole-temporal fenestrae) Muscle attachment - secure to edges or ridges of bones (implies muscles attach better to the the edge of holes) Muscles extend when jaw is open, and rest inside the hole when closed .
