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Date: 2006-05-08 09:44:30Burgess Shale fossils Lagerstätten Fossils Dinocarida Lobopodia Xenusiid Arthropod head problem Sirius Passet Jianshanopodia Paleozoic Phanerozoic Geologic time scale | UntitledAdd to Reading ListSource URL: app.pan.plDownload Document from Source WebsiteFile Size: 960,61 KBShare Document on Facebook |