12-thyreophorans

12-thyreophorans - 460:206 DINOSAURS Thyreophora The...

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460:206 DINOSAURS The Armored Ornithischians: Stegosaurs and Anklosaurs Thyreophora
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Paleozoic Land Ecology Carboniferous Land Floras Seed ferns Cycads Conifers FORESTS
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Paleozoic Land Ecology Seed ferns Cycads Conifers FORESTS
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Evolution of Angiosperms Cretaceous Period New plants, new plant-eaters (Ornithopods)
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Evolution of Angiosperms (Flowering plants) Beginning of the Cretaceous Period New plants, new plant-eaters (Ornithopods)
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Order Ornithischia “Bird-like” pelvis Predentary bone (skull) Ossified tendons along vertebral column
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Order Ornithischia
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Thyreophora “shield-bearers” Stegosauria “plated reptile” Dermal bone armor plates Anklosauria “fused reptile”
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The Price of Defense Speed not enough to protect them (Ornithopods were faster), so need another defense (armor!) As they add more armor, this weighs the animal down and….
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Thyreophora “shield-bearers” Primitive Thyreophorans Scelidosaurus Early Jurassic England
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1st found in American West Didn’t think it was a dinosaur, thought it was a giant turtle! Thought the plates formed to make shell, and that they laid flat.
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Small, long and pointy Heads. Short, stout forelimbs
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This note was uploaded on 02/18/2011 for the course DINOSAURS 206 taught by Professor Neitzke during the Spring '11 term at Rutgers.

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12-thyreophorans - 460:206 DINOSAURS Thyreophora The...

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