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Wednesday, July 22, 2020 | History

3 edition of Eocene fossil Mammalia from the Sand Wash Basin, northwestern Moffat County, Colorado found in the catalog.

Eocene fossil Mammalia from the Sand Wash Basin, northwestern Moffat County, Colorado

Robert M. West

Eocene fossil Mammalia from the Sand Wash Basin, northwestern Moffat County, Colorado

by Robert M. West

  • 200 Want to read
  • 13 Currently reading

Published by Carnegie Museum of Natural History in Pittsburgh .
Written in English

    Places:
  • Colorado,
  • Moffat County.,
  • Sand Wash Basin (Colo. and Wyo.)
    • Subjects:
    • Mammals, Fossil -- Colorado -- Moffat County.,
    • Paleontology -- Eocene.,
    • Paleontology -- Colorado -- Moffat County.,
    • Mammals, Fossil -- Sand Wash Basin (Colo. and Wyo.)

    • Edition Notes

      Other titlesEocene fossil Mammalia from the Sand Wash Basin, northwestern Moffat County ...
      StatementRobert M. West, Mary R. Dawson.
      SeriesAnnals of Carnegie Museum ; v. 45, article 11, Annals of the Carnegie Museum ;, v. 45, article 11.
      ContributionsDawson, Mary R., joint author.
      Classifications
      LC ClassificationsAS36 .P7 vol. 45, no. 11, QE881 .P7 vol. 45, no. 11
      The Physical Object
      Paginationp. 231-253 :
      Number of Pages253
      ID Numbers
      Open LibraryOL4284360M
      LC Control Number78310882

      include the (1) Eocene Kreyenhagen and Tumey formations, (2) Miocene Monterey Formation (Buttonwillow depocenter), and (3) Miocene Monterey Formation (Tejon depocenter). AHC identifies 22 oil families in the basin as corroborated by independent data, such as stable isotope ratios, sample location, reservoir unit. GEOMORPHIC PROCESSES AND AQUATIC HABITAT IN THE REDWOOD CREEK BASIN, NORTHWESTERN CALIFORNIA GEOLOGY OF THE REDWOOD CREEK BASIN, HUMBOLDT COUNTY, CALIFORNIA By SUSAN M. CUSHMAN,1 HARVEY M. KELSEY,1 and DEBORAH R. HARDEN2 (). Soils in the basin were studied by Alexander and ABSTRACT The Redwood Creek .

      AAPG Datapages/Archives. Welcome Guest. Login as a different user | AAPG Members User Log In. Home. Archives Home; Guidebook to the Geology of Northwest Colorado, Pages Early Cenozoic History of the Sand Wash Basin, Northwest Colorado. Howard R. Ritzma. View the First Page. Palaeogeography, Palaeoclimatology, Palaeoecology, 43 (): Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands PALEOECOLOGY OF AN EARLY EOCENE MAMMALIAN FAUNA FROM PALEOSOLS IN THE CLARKS FORK BASIN, NORTHWESTERN WYOMING (U.S.A.) DALE A. WINKLER1 Museum of Paleontology, The University of Michigan, Ann Cited by:

      "Late Miocene–Pleistocene evolution of a Rio Grande rift subbasin, Sunshine Valley–Costilla Plain, San Luis Basin, New Mexico and Colorado", New Perspectives on Rio Grande Rift Basins: From Tectonics to Groundwater, Mark R. Hudson, V.J.S. (Tien) Grauch. The John Martin Reservoir tracksites from the Dakota Group of Bent County, in southeastern Colorado form part of the mid Cretaceous Dinosaur Freeway characterized by abundant ornithopod footprints (Caririchnium).Over tracks ( Caririchnium, 1 Magnoavipes, 22 crocodiles, and a few pterosaurs) were discovered at 10 new tracks were found as natural casts, including Cited by:


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Eocene fossil Mammalia from the Sand Wash Basin, northwestern Moffat County, Colorado by Robert M. West Download PDF EPUB FB2

FOSSIL MAMMALIA OF THE HUERFANO FORMATION, EOCENE, OF COLORADO* PETER ROBINSON PART I GEOLOGY INTRODUCTION The study of the Huerfano mammals presented here is the result of a project initiated in by Dr. George Gaylord Simpson, then Curator of Fossil Mammals and Birds at the American Museum of Natural History and now Alexander.

Silicified woods are common in the upper D1 (Paleocene – Puercan and Torrejonian) and D2 (Eocene – Wasatchian) sequences of the Denver Basin. Almost all derive from : Elisabeth Wheeler. Halite and the sodium bicarbonate mineral nahcolite were deposited in Eocene-age saline Lake Uinta in the Piceance Basin, northwestern Colorado.

Variations in the areal extent of saline mineral deposition through time were studied using descriptions of core and outcrop. Saline minerals have been extensively leached by groundwater, and the original extent of saline deposition was determined. Provenance studies have used Sr isotopes (87 Sr/ 86 Sr) of silicate source rocks as a link to their eroded basinal technique, however, cannot identify the proportional inputs from different watersheds or define more precisely sedimentation events due to tectonic or climatic by: The Eocene Green River Formation of Wyoming, Utah, and Colorado may be the best overall analog.

The lacustrine system cove+ km2, is over m thick, contains stevensite, has numerous subaqueous spring buildups, is rich in microbialites (many. Sedimentology of freshwater lacustrine shorelines in the Eocene Scheggs Bed of the Tipton Tongue of the Green River Formation, Sand Wash Basin, Northwest Colorado Bulletin Earliest Eocene mammalian fauna from the Paleocene-Eocene Thermal Maximum at Sand Creek Divide, Southern Bighorn Basin, Wyoming Article (PDF Available) February with Reads How we.

Fossil Plants Of The Ione Basin, California: Head to Amador County in the western foothills of California's Sierra Nevada to explore the fossil leaf-bearing Middle Eocene Ione Formation of the Ione Basin. This is a completely undescribed fossil flora from a geologically fascinating district that produces not only paleobotanically invaluable.

The Eocene Green River flora of northwestern Colorado and northeastern Utah, (University of California publications in geological sciences, v. 83) [MacGinitie, H. D] on *FREE* shipping on qualifying offers. The Eocene Green River flora of northwestern Colorado and northeastern Utah, (University of California publications in geological sciencesAuthor: H.

D MacGinitie. The report which is tentatively titled "Eocene Biochronology of North America" is to be published as a chapter in a book being edited by M. Woodburne for the University of California Press with the title Vertebrate Paleontology as a Discipline in Geo- chronology.

Eocene fossil mammalia from the Sand Wash Basin, northwestern Moffat County. SYSTEMATICS OF EARLY EOCENE MIACIDAE (MAMMALIA, CARNIVORA) IN THE CLARK'S FORK BASIN, WYOMING BY Philip D.

Gingerich Abstract.-Four genera and six species of Miacidae are known from faunas representing the Clarkforkian through middle Wasatchian land-mammal ages in the Clark's Fork Basin, Wyoming. These are, in order of appearance,Cited by: Abstract. Trace fossils produced by insects, annelids, molluscs, birds, mammals, reptiles, amphibians, and fish are diverse in the Green River and roughly correlative formations, and provide clues to interpret sedimentary environments, stratigraphy, and paleoecology of continental organisms during the Early to middle Eocene (~53–43 Ma).Cited by: 4.

Halite and the sodium bicarbonate mineral nahcolite were deposited in Eocene-age saline Lake Uinta in the Piceance Basin, northwestern Colorado. Variations in the areal extent of saline mineral deposition through time were studied using descriptions of core and outcrop.

Video as seen at the Washakie Museum in Worland Wyoming. Features Big Horn Basin scientists presenting the importance of research on the PETM (paleocene eocene thermal maximum) in.

All specimen numbers prefaced by the acronym UM are in the fossil vertebrate collections of the University of Michigan Museum of Paleontology. UM(1) refers to molluscan specimens numbered separately in the invertebrate collection. Fossil localities prefaced by SC are in the Sand Coulee area of the Clark's Fork Basin in northwestern Wyoming.

AtStation2,nearheadofSaltWash,RoanMountains,Colorado, wefound avery fineleaf withnine leaflets, showing the petiolules about 8 mm. long, thebasesofthe leaflets narrowly cuneate, the. known of the North American Paleocene-Eocene transition based on the stratigraphic record of mammals and climate in the vicinity of Polecat Bench in the northern Bighorn Basin of northwestern Wyoming.

Geological Society of America Special Paper Mammalian responses to climate change at the Paleocene-Eocene boundary: Polecat Bench. Buy Early Eocene bats (Mammalia, Chiroptera) and other vertebrates in freshwater limestones of the Willwood Formation, Clark's Fork Basin, Wyoming (Contributions from the Museum of Paleontology) on FREE SHIPPING on qualified ordersAuthor: Philip D Gingerich.

The Bighorn Basin has produced the richest and most diverse early Eocene mammalian faunas in the world and is the principal source of our knowledge of skeletal anatomy in these mammals. Until recently, most of our information on postcranial anatomy in early Eocene mammals came from the works of Matthew and his contemporaries.

7 Ma. Little Colorado River and Gila River populations also began diverging from the Los Angeles basin and other Lower Colorado populations – Ma.

(2) Death Valley popula-tions of Rhinichthys (seq div = %) were derived from popu-lations of the Lahontan basin Ma. (3) Owens Valley and Death Valley Cyprinodon (rate = % / m.y. Early Eocene fanglomerate, northwestern Big Horn Basin, Wyoming bV Steven Roger Bredall A Thesis Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of MASTER OF SCIENCE Major Subject!

Earth Science (Geology) Signatures have been redacted for privacy Iowa State University Of Science and Technology.Wash Cliffs, which consist of subhorizontal Paleozoic strata rising ~ km above several east-tilted half grabens in the cor-ridor, including the Grand Wash trough and the Hualapai basin.

With respect to the base of the Tertiary section, structural relief across the Grand Wash fault zone commonly exceeds 5 km.An extensive earliest Eocene mammalian fauna is described from the PETM interval of Sand Creek Divide, about 17 km northeast of Worland, Wyoming.

The assemblage, consisting of more than specimens representing 56 species, was collected over the last decade by surface prospecting, screen-washing, and limited excavation.