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| First Page | Document Content | |
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 Date: 2010-02-25 04:14:28Lagerstätten Burgess Shale fossils Sirius Passet Fossils Paleontology Halkieria Xystoscolex Chalazoscolex Lagerstätte Paleozoic Phanerozoic Geologic time scale |
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| First Page | Document Content | |
|---|---|---|
Date: 2010-02-25 04:14:28Lagerstätten Burgess Shale fossils Sirius Passet Fossils Paleontology Halkieria Xystoscolex Chalazoscolex Lagerstätte Paleozoic Phanerozoic Geologic time scale |
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Conway-Morris_20090058.vp