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13 Cards in this Set
- Front
- Back
- 3rd side (hint)
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anapsid
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no holes, turtles, amphibians, and fish
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synapsid
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one hole. lateral temporal fenestra, mammals and relatives
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diapsid
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two holes, both temporal fenestra, most reptiles, dinosaurs, pterosaurs, and birds
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dicynodonts
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large herbivores of the late Triassic
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archosaurus
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reptiles characterized by presence of antorbital fenestra
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archasauria
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evolved early Triassic, diapsid, living today are crocodile and birds
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pseudosuchia
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also known as crurotarsi, archasauria group lead to crocodile
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ornithodira
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second group of archasauria evolved into pterosaurs dinosaurs and birds
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pterosaurs
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wing is the extended fourth finger
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dinosaur origins
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240 - 230 mya, oldest dinosaurs from Argentina, ischigualasto formation
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first dinosaurs
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eoraptor, herrerasaurus, eodromaeus
upright posture, open hip socket, opposable thumb, three fingered hand |
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dinosaur advantages
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bipedalism, free hands, speed, indulgence, warm-blooded
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thyreophoran phylogeny
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