08-reptiles - 460:206 DINOSAURS The reptilian precursors to...

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460:206 DINOSAURS The reptilian precursors to the dinosaur ecosystem
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EARLY REPTILES Anapsids
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EARLY REPTILES Synapsids
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EARLY REPTILES Diapsids
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Synapsid Edge of one hole = powerful chewing muscles REPTILE RADIATION Pelycosaurs
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Archaeothyris REPTILE RADIATION Pelycosaurs Heavy, sprawling limbs Strong, stiff vertebral column
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Archaeothyris REPTILE RADIATION Pelycosaurs Long jaws Sharp, pointed teeth
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Cotylorhynchus REPTILE RADIATION Pelycosaurs VEGETARIAN!
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Cotylorhynchus REPTILE RADIATION Pelycosaurs VEGETARIAN! Short jaw Short, blunt teeth No long, sharp canine
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Cotylorhynchus REPTILE RADIATION Pelycosaurs VEGETARIAN! Wide Bodies (large gut)
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Edaphosaurus REPTILE RADIATION Pelycosaurs THERMOREGULATION SOLUTION “the sail”
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PERMIAN ENVIRONMENTAL CHANGE Ice sheets
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Pelycosaurs restricted in the tropics THERAPSIDS disperse to higher latitudes
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THERAPSIDS Synapsids larger skull opening thickened skull large canine teeth
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THERAPSIDS Large-bodied Short, stout limbs Small tails (adaptations for living in colder temps and preserving body temp)
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THERAPSIDS Large-bodied Short, stout limbs Small tails Adaptations for cooler environments
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THERAPSIDS DIVERSITY
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Permo-Triassic Extinction
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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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08-reptiles - 460:206 DINOSAURS The reptilian precursors to...

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