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Document Type

Research

Keywords

Vertebrate paleontology; Pleistocene stratigraphy; Proboscidian identification; small-mammal sympatry; paleoclimatology; Oakland local fauna, Pottawattamie County, Iowa.

Abstract

. In August 1970, an investigation was made of the remains of a mammoth, Mammuthus cf. M. columbi, exposed west of Oakland, in Pottawattamie County, Iowa. A segment of proboscidian tusk, a lower third molar, and additional skeletal fragments were collected from the Wisconsin loess. Associated with the mammoth was a small-mammal fauna consisting of Phenacomys intermedius (heather vole), Microtus pennsylvanicus (meadow vole), and Vulpes vulpes (red fox), extant species with an area of sympatry immediately north of the Minnesota-Canadian border. This fauna, here designated the Oakland local fauna, supports cooler summers in western Iowa during Wisconsin loess deposition.

Publication Date

August 1972

Journal Title

Proceedings of the Iowa Academy of Science

Volume

79

Issue

2

First Page

62

Last Page

65

Copyright

© Copyright 1972 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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