. The age of mammals in Europe, Asia and North America. Mammals, Fossil; Paleontology. THE PLIOCENE OF EUROPE, ASIA, AND NORTH AMERICA 341 to the close of the Pliocene in the following table; they may prove subse- quently to belong rather to the early part of the Middle PHocene Fig. 159. —? Chief Pliocene and Upper Miocene fossil mammal deposits of western North America. 1. Rattlesnake, Oreg. 2. Blanco, Tex. 3. Ogallala, Kan., Nebr. 4. Snake Creek, Nebr. 5. Virgin Valley, Nev. 6. Loup River, Nebr. (See text for horizons.) With these doubts in mind as stimulating to further resear
. The age of mammals in Europe, Asia and North America. Mammals, Fossil; Paleontology. THE PLIOCENE OF EUROPE, ASIA, AND NORTH AMERICA 341 to the close of the Pliocene in the following table; they may prove subse- quently to belong rather to the early part of the Middle PHocene Fig. 159. —? Chief Pliocene and Upper Miocene fossil mammal deposits of western North America. 1. Rattlesnake, Oreg. 2. Blanco, Tex. 3. Ogallala, Kan., Nebr. 4. Snake Creek, Nebr. 5. Virgin Valley, Nev. 6. Loup River, Nebr. (See text for horizons.) With these doubts in mind as stimulating to further research, the follow- ing ascending arrangement of the best known formations is set forth provisionally: (Peace Creek Formation of Elephasf columhi and Equus Upper Pliocene, or J southern Florida, Zone Lower Pleistocene j [^Qnp Jiiyer, of eastern Ne- Elephas imperator and Equus I braska Zone Blanco Formation, Staked Ghjptofheriurn Zone, Rhinoceros Plains, or Llano Estacado, extinct or undiscovered of Texas Virgin Valley and Thousand Ilingoceros Zone, Rhinoceros Creek of Nevada surviving S7iake Creek beds, western Neotragocerus Zone, Rhinoceros Nebraska surviving Rattlesnake Formation, John Aliicamelus Zone, Rhinoceros Day Valley, Oregon survi\'ing Alachua Clays, northern Flor- Peraccras Zone, Rhinoceros very ida. abundant ?Republican River Formation, Peraceras Zone northern Kansas and Ne- braska. Lower Pliocene Lower Pliocene, or Upper Miocene. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Osborn, Henry Fairfield, 1857-1935. New York, The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpaleontology, bookyea
