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Document Type

Research

Abstract

Small calcareous plates, possibly from Asteroidea or other Echinodermata, occur in the Maquoketa shale of Iowa. These plates all have similar characteristics, but vary in their minute structures, and the variations apparently have some stratigraphic significance.

Publication Date

1939

Journal Title

Proceedings of the Iowa Academy of Science

Volume

46

Issue

1

First Page

251

Last Page

251

Copyright

© Copyright 1939 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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