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![]() Date: 2006-10-11 11:01:56Geology of Kansas Chalk Mesozoic Niobrara Formation Plioplatecarpus Archelon Cretaceous Mosasaurs Herpetology Phanerozoic | Source URL: www.dmr.nd.govDownload Document from Source WebsiteFile Size: 133,19 KBShare Document on Facebook |