Master's Theses

Document Type

Thesis - campus only access

Date of Award

Spring 1974

Degree Name

Master of Science (MS)




Michael E. Nelson


Fossil vertebrates were collected from the Ogallala Formation in Ellis County, Kansas. The sediments from which the fossils were recovered vary from fine silt and clay to very coarse gravels and represent marginal areas of a large river channel. The vertebrates represent members of a diverse community that occupied riparian and adjacent floodplain habitats. The twenty-one taxa of mammals present, together with a variety of lower vertebrates, provide information for paleoecologic interpretation. These taxa indicate a humid, subtropical climate, abundant deciduous vegetation along the river, grass covered slopes on the floodplain, with the existence of a nearby savannah. The stage of evolution of the mammals suggests an early Pliocene age for the local fauna.


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Copyright 1974 Danny D. Zehr

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