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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Late Triassic |
- 220 mya - all continents attached - no ice caps - dinosaurs able to migrate widespread |
220 MYA, Pangaea |
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Early Jurassic |
- 200 mya - sauropods blossom - continents begin to separate (esp. N/S) - European region underwater |
200 MYA |
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Middle Jurassic |
Widening separation 170 MYA |
170 MYA |
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Late Jurassic |
- 150 MYA - finally separated - interior seas |
150 MYA |
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Early Cretaceous |
- 105 MYA - animal populations separated - evolution can take separate paths - narrow South Atlantic - building North Atlantic - species diversity increasing - Australia still connected to Antarctica - overall warm climate - Polar sea encroaching on NA continent - rocky mountain building |
105 MYA |
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Late Cretaceous |
- 90 MYA - shallow seas and seaways between continents - marine passages for migration |
90 MYA |
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Cretaceous/Tertiary Boundary |
66 MYA - losing dinosaurs and plants - mass extinction - some catastrophic event(s) - seaway dried up |
66 MYA |
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The Vail Curve |
six unconformity bounded sequences of word-wide sea level changes through geological time |
Sea level change |
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Mid ocean ridges |
convergent ocean plates make ocean levels rise |
convergent |
