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Date: 2008-03-17 05:21:52Burgess Shale fossils Incertae sedis Paleontology Halkieria Microdictyon Sclerite Fossils Mongolitubulus Maotianshan Shales Paleozoic Phanerozoic Geologic time scale | Add to Reading ListSource URL: www.paleo.pan.plDownload Document from Source WebsiteFile Size: 3,09 MBShare Document on Facebook |