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Date: 2007-02-25 05:42:41Geologic time scale Cenozoic Pezosiren Protosiren Sirenia Metaxytherium Eotheroides Rytiodus Eocene Transitional fossils Sirenians Phanerozoic | Add to Reading ListSource URL: www.sirenian.orgDownload Document from Source WebsiteFile Size: 457,13 KBShare Document on Facebook |