Geologic time scale - Document - PDFSEARCH.IO

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Date: 2006-09-18 11:28:08 Plesiosaurs Elasmosaurus Plesiosauria Elasmosauridae Mosasaur Western Interior Seaway Plesiosauroidea Niobrara Formation		Add to Reading List Source URL: www.dmr.nd.gov Download Document from Source Website File Size: 111,50 KB Share Document on Facebook