ERTH 2401 Study Guide - Final Guide: Metacarpal Bones, Skeleton, Antetonitrus

• School: Carleton University
• Department: Earth Sciences
• Course: ERTH 2401
• Professor: Claudia Schroder- Adams

Document Summary

Super long neck, small head, small brain tiny brain to operate such a large animal. Sturdy legs, quadrupedal big bones evenness of forelimbs and hindlimbs can be noted. Dinosaur phylogeny: dinosauria saurischia sauropodomorpha. Saurischia: named by seeley 1887, pel(cid:448)is: (cid:862)lizard-like(cid:863) the pubis bone is downward. (cid:862)lizard(cid:863) hipped di(cid:374)osaurs a(cid:374)d the pu(cid:271)is proje(cid:272)ts for(cid:449)ards (or downwards) as seen in reptiles (primitive positon) Includes the smallest and the largest dinosaurs: all the carnivorous dinosaurs and some herbivores, from late triassic early cretaceous (very successful) Derived features of saurischia: subnarial foramen opening beneath the nostril area, elongation of the reward neck vertebra (resulting in a longer neck) Eoraptor: small (1. 3m long, bipedal, early saurischian from the late triassic of argentina (hot bed for early dinosaurs) I(cid:374)itiall(cid:455) de(cid:272)reased i(cid:374) the (cid:1005)99(cid:1004)"s as a(cid:374) earl(cid:455) theropod: reinterpreted in 2010 as a sauropodomorpha as it shares with other.