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| | National Museum of Natural History - Paleobiology (Site not responding. Last check: 2007-10-13) |
 | | Then, just to its left, Pikaia swims above the substrate showing its flattened tail. |
 | | Just below center stage, Opabinia's trunk-like snout has caught Burgessochaeta, a bristle worm relative of Canadia (not shown.) There, to its left, Hallucigenia and Wiwaxia scurry along just in front of a very large Sanctacaris. |
 | | At center left, Aysheaia dines on the sponge Vauxia while at lower left, Microdicyton nibbles away on a companion sponge. |
| www.nmnh.si.edu /paleo/shale/pamsci.htm (227 words) |
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