Upper Mississippian ammonoids from Arkansas and Oklahoma. Mississippian–Pennsylvanian Boundary in northeastern Oklahoma and northwestern Arkansas
Upper Mississippian ammonoids from Arkansas and Oklahoma. Geological Society of America Special Paper 145. Saunders, W. B. 1975. The Upper Mississippian Eumorphoceras eras friscoense ammonoid assemblage, North American Midcontinent. Septième Congrès International de Stratigraphie et de Géolgie du Carbonifère 4:201–207. Mississippian–Pennsylvanian Boundary in northeastern Oklahoma and northwestern Arkansas. Oklahoma Geological Survey Guidebook 18. Swan, A. R. and Saunders, W. 1987. Function and shape in Late Paleozoic (mid-Carboniferous) ammonoids.
The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences. The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hitchcock, John R. Procter. Procter and Edward Orton and has been headquartered at 3300 Penrose Place, Boulder, Colorado, USA, since 1967. GSA began with 100 members under its first president, James Hall. In 1889 Mary Emilie Holmes became its first female member.
Two specimens of the Late Mississippian ammonoid cephalopod Metadimorphocerassp. Upper Mississippian ammonoids from Arkansas and Oklahoma. Geological Society of America Special Paper, 145, 1–110. CrossRefGoogle Scholar
Two specimens of the Late Mississippian ammonoid cephalopod Metadimorphocerassp. were recovered from the Bear Gulch Limestone in Montana. CrossRefGoogle Scholar. & Ward, P. D. (1987). Ecology, distribution, and population characteristics of Nautilus.
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Special Papers in Palaeontology. Special Papers in Palaeontology Archive. The occurrence of a late Mississippian cephalopod, the genus Delepinoceras, is reported from Arkansas and Oklahoma. This fossil, not previously described from the Western Hemisphere, indicates precise correlation of the upper Chester Series and the late lower Namurian of Eurasia and Africa.
Hydrothermal Processes Above the Yellowstone Magma Chamber: Large Hydrothermal Systems and Large Hydrothermal Explosions (Geological Society of America Special Paper). Lisa A. Morgan, W. C. Pat, III Shanks, Kenneth L. Pierce. 2. 6 Mb. Plugs and Plug Circles: A Basic Form of Patterned Ground, Cornwallis Island, Arctic Canada : Origin and Implications (Geological Society of America Memoir 190). Albert Lincoln Washburn.
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