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14 Cards in this Set
- Front
- Back
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Name three groups of extinct reptiles, give one distinguishing feature for each.
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1. Plesiosaurs (long neck swimmers)
2. Ichthyosaurs (dolphin like reptiles) 3. Pterosaurs (flyers) |
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Only Herbivores were part of this Dinosaur group?
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Ornithischians
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Main groups of marine invertebrates that dominated during the Mesozoic?
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Molluscs dominate. Mainly ammonite, cephalopods and rudistid bivalves.
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Carnivores and some Herbivores were part of what Dinosaur group?
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Saurischians
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When did life first get onto land?
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Arthropods. During Slurian time.
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Southern Hemisphere of Pangea is ____?
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Gondawanaland
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Two modern reptiles
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1. Frogs 2. Turtles
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What was sea level like during middle to late Jurrasic?
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Sea level rose
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What supercontinent was formed at the end of the Paleozoic?
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Pangea
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What are the two main subdivisions of the Dinosaurs?
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1. Saurischicans (reptile like hip joint)
2. Ornithischians (bird like hip joint) |
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Permian extinction happened when?
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245 mya.
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Northern Hemisphere of Pangea is ___?
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Laurassia
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What is the orgin of Triassic basalt and redbeds near the east coast margin of North America?
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Normal faulting volcanism (divergence), rifting in the late Triassic.
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What was the major ocean basin that formed with the breakup of Pangea?
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Extension to the Tethys Sea (precurser to the Mediterranian sea)
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