IGCP 591: The Early to Middle Paleozoic Revolution: Bridging the Gap between the Great Ordovician Biodiversification Event and the Devonian Terrestrial Revolution
Utica Shale is a black, calcareous, organic-rich shale of Middle Ordovician age that underlies significant portions of Ohio, Pennsylvania, West Virginia, New York, Quebec and other parts of eastern North America.
Saint-Petersburg Paleontological Laboratory specializes in the find, excavation, preparation, scientific investigation and selling of Russian fossils. C
atalog of Russian fossils for sale, scientific information concerning the fossils and information abou
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