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Authors

Samuel Calvin

Document Type

Research

Abstract

The publication of the paper on the Aftonian Mammalian Fauna, in the Bulletin of the Geological Society of America, volume XX, pages 341-356, has very naturally elicited a number of questions which, however, bear chiefly on two points: First, are we certain as to the precise age of the gravels? And second, are we certain that the mammalian remains described may not be older than the Aftonian?

Publication Date

1910

Journal Title

Proceedings of the Iowa Academy of Science

Volume

17

Issue

1

First Page

177

Last Page

180

Copyright

© Copyright 1910 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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