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diaspid phylogeny

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pterosaurs. dinosaurs. upright posture. bipedal locomotion. large body size. diaspid phylogeny ... pterosaurs. dinosaurs. ornithischians. saurischians ... – PowerPoint PPT presentation

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Title: diaspid phylogeny


1
diaspid phylogeny
tuatara
lizards
snakes
archosaurs
lepidosaurs
diapsid ancestor
2
diaspid phylogeny
3
Crocodylia alligators, crocodiles, gavials
23 extant species
4
get the field guide
5
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6
most derived of the extant reptiles four
chambered heart lungs (faveoli) diaphragm thecodon
t teeth well-developed cerebral cortex
7
external nostrils hard palate internal
nostrils nasopharynx fleshy folds
8
Archosaurs
  • large
  • aquatic or semi-terrestrial
  • predaceous

9
sit and wait predators
10
this is a true story
11
males are territorial displays courtship
12
females make nest clears a circular
area vegetation and mud central vegetation
13
pit eggs nest covered conical structure female
stays nearby
14
nest function? female returns females defend
15
babies hatch vocalize female parental care
16
diaspid phylogeny
crocodilians
pterosaurs
tuatara
lizards
snakes
archosaurs
lepidosaurs
diapsid ancestor
17
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18
Pteranodon
Quetzalcoatlus
19
Quetzalcoatlus
20
diaspid phylogeny
crocodilians
upright posture bipedal locomotion large body size
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
21
diaspid phylogeny
crocodilians
saurischians
ornithischians
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
22
The Ornithischians
Stegosaurus
23
Hadrosaurs, the duckbilled dinosaurs
24
Ceratopsians, including Protoceratops
25
and Triceratops
26
diaspid phylogeny
crocodilians
saurischians
ornithischians
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
27
crocodilians
sauropods
ornithischians
saurischians
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
28
Diplodocus
29
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30
Apatosaurus
Gigantothermy
31
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32
carnosaurs
crocodilians
sauropods
ornithischians
theropods
saurischians
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
33
Allosaurus
34
Tyrannosaurus
35
dromaeosaurs
carnosaurs
crocodilians
sauropods
ornithischians
theropods
saurischians
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
36
Utahraptor
37
Deinonychus
38
Velociraptor
39
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40
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41
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42
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43
Birds!
dromaeosaurs
carnosaurs
crocodilians
sauropods
ornithischians
theropods
saurischians
pterosaurs
tuatara
lizards
snakes
dinosaurs
archosaurs
lepidosaurs
diapsid ancestor
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