GSC 111 : Dinosaurs GSC (3).docx

• School: University of Miami
• Department: Geological Sciences
• Course: GSC 111
• Professor: Glen Peterson

Document Summary

*dinosaurs are an extinct group of reptiles with upright posture [dinosaur"s are reptiles] *amniotic egg (like other reptiles & birds) [amniotic like other eggs around time] *completely terrestrial (don"t fly, don"t swim) [dino"s fly-no"s] *not all dinosaurs were big (ranged from the largest land animals of all time to about size of a chicken) *more than 800 species of named dinosaurs (and probably more to come) Some argue that there were fewer species, and that the separate species were based/named off of partial fossils [separate species / partial fossils. * the scientific study of dinosaurs began in england in the 1820"s. Richard owen coined the name dinosauria (1842) [owen owns it] *dinosaurs started smaller and grew bigger later [start small grow big later] *holes in skull called fenestra reduced total weight of dinosaur [holes in the. Shoulder joint faces backward [shoulder"s need joint and face backwards to. *advanced mesotarsal ankle (hinge ankle) [tar makes body hinge]