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@Lecture20_9 - Questions PALEOBIOLOGY What are amniotes and...

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1 1 Fall 2009, GEL 107: Lecture 20 PALEOBIOLOGY 2 “Reptiles” 3 What are amniotes and amniotic eggs? What are reptiles and sauropsids? What are “anapsids” or parareptiles, and what is the “turtle problem”? What are eureptiles and diapsids”? What are lepidosauromorphs? How did crocodiles evolve? What are archosauromorphs? Questions 4 Reptilia Mammalia Amniota Synapsida “Anapsida” Diapsida 5 Chorion Amnion Allantois Yolk Embryo Amniotic Egg Cleidoic Egg 6 Growth 7 What are amniotes and amniotic eggs? What are reptiles and sauropsids? What are “anapsids” or parareptiles, and what is the “turtle problem”? What are eureptiles and diapsids”? What are lepidosauromorphs? How did crocodiles evolve? What are archosauromorphs? Questions 8 Reptilia Mammalia Amniota Synapsida “Anapsida” Diapsida Sauropsida 9 Reptilia Mammalia Amniota Synapsida “Anapsida” Diapsida Sauropsida
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2 10 Mesosauridae E. Permian Mesosaurus 11 12 13 14 What are amniotes and amniotic eggs? What are reptiles and sauropsids? What are “anapsids” or parareptiles, and what is their relevance to the “turtle problem”? What are eureptiles and diapsids”? What are lepidosauromorphs? How did crocodiles evolve? What are archosauromorphs? Questions 15 Reptilia Mammalia Amniota Synapsida “Anapsida” Diapsida 16 Reptilia Sauria Parareptiles Lepidosaur s Dinosaurs Archosaurs Crocodiles Diapsida Arc h osau romrophs
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