01:460:206 Lecture Notes - Lecture 5: Geologic Time Scale, Dinosaur, Thecodontia

• School: Rutgers University
• Department: Geological Sciences
• Course: 01:460:206
• Professor: Mc Ghee

Document Summary

Ankle hinge anatomy: bent ankle hinge calcaneum and astragalus are of similar size. Sprawlers and some semi-erect: straight hinge calcaneum and astragalus aren"t as pronounced. Archosaurs: ruling reptiles : amniota class reptilia subclass archosauria 5 orders: Most basal form, gave rise to the rest of these below. Order saurischia extinct considered by richard owens as. Order ornthischia extinct considered as dinosaurs (terrible lizards) Bird-like pelvic structure (but birds did not evolve from them) convergent structure. Phylogenetic systematic issue on paper: now there"s a class dinosauria (incudes class aves aka birds now) Material to know: lecture topics 1 through 9: study #1 cladograms! (heart of course) Very important, copy over and over and fill out as practice: study #2 other material not in cladograms (anatomy, study #3 geologic time scale!