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Lab 3

Dinosaurs

QuestionAnswer
What were archosaurs called? Ruling Reptiles
What are the relatives of archosaurs? crocodiles and relatives
What dinosaurs are related to birds? Ornithodirans
Name an ornithodiran. Pterosaurs
What shape pelvic bones does an ornithischian dinosaur have? bird-hipped, parallel
What dinosaurs are ornithischian? horned, dome headed, armored
What shape pelvic bones does a saurischian dinosaur have? lizard-hipped, perpendicular
What dinosaurs are saurischian? sauropods and prosauropods,
What are the meat-eating dinosaurs called? Theropods
In general what happened to the femur bone of non-ornithodiran dinosaurs with time? They became smaller.
In general, what happened to the femur bone of dinosaurs that did not walk on 2 feet? They became longer.
What are dinosaur traits? quadruped or biped, terrestrial, egg-laying, specific pelvic bones, limbs positioned under body, cranial fenestra.
How many condyles do reptiles have? 1
How many condyles do mammals have? 2
Created by: mbruzzano
 

 



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