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![]() Date: 2008-03-26 08:55:20Phanerozoic Arthropods Phylogenetics Lagerstätten Protostome Cambrian explosion Burgess Shale type fauna Sanctacaris Opabinia Burgess Shale fossils Taxonomy Biology | Source URL: webh01.ua.ac.beDownload Document from Source WebsiteFile Size: 312,12 KBShare Document on Facebook |