Browsing Bulletin of the Museum of Natural History, University of Oregon by Author "Shotwell, J. Arnold"

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  • JOURNAL OF FIRST TRIP OF UNIVERSITY OF CALIFORNIA TO JOHN DAY BEDS OF EASTERN OREGON 
    Miller, Loye; Shotwell, J. Arnold (Museum of Natural History , University of OregonMuseum of Natural History, University of Oregon, 1972-12)
    The journal is Dr. Miller's account of the University of California field expedition into the John Day Basin of Central Oregon in 1899. This expedition, as well as many that followed from that institution, was led by ...
  • Late Tertiary Geomyoid Rodents of Oregon 
    Shotwell, J. Arnold (Museum of Natural History, University of OregonMuseum of Natural History, University of Oregon, 1967-11)
    The geomyoid rodents of the late Tertiary of Oregon are described and their relationships discussed. Most of the material involved is new. A new genus, Parapliosaccomys, is recognized and three new species, Parapliosacc ...
  • PEROMYSCUS OF THE LATE TERTIARY IN OREGON 
    Shotwell, J. Arnold (Museum of Natural History, University of OregonMuseum of Natural History, University of Oregon, 1967-06)
    Samples of Peromyscus from six late Tertiary localities in Oregon are described. Variation and progressive changes are discussed for the time, Barstovian through Hemphillian. Two new species, P. pagei and P. valensis are ...
  • Pliocene Mammals of Southeast Oregon and Adjacent Idaho 
    Shotwell, J. Arnold (Museum of Natural History, University of OregonMuseum of Natural History, University of Oregon, 1970-08)
    The primary purpose of the work described here was to complete the study of a late Tertiary sequence of faunas in the Northern Great Basin. Shotwell (1968) reported on the late Miocene faunas of the region. The ...

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