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The Invasion of Land 2
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Lecture 21
4/17/98
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| | Today, we continue our discussion of the invasion of land in the late Palezoic, by examining the fossil record of the early arthropods and vertebrates. |
| | Animals had to solve the same problems that plants faced when moving to land. |
| | The evolutionary advances that solved these problems not only allowed animals to invade land, but also to radiate over the continents. |
| | occured in the late Silurian? to early Devonian |
| | late Carboniferous (300 Ma) |
| | Francis Creek Shale in Illinois |
| | occured in the late Devonian |
| | quite similar to rhipidistian fish |
| | first appear in the early Carboniferous |
| | small lizard like animals |
| | Reptiles make a major radiation in the Permain |
| | Therapsids (mammal-like reptiles) |
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