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Document Type

Research

Abstract

Intraspecific variation was observed in a study of 177 well preserved specimens of the conodont Polygnathus brevilamina. Variations in the size of platform and in the degree of ornamentation of the platform are illustrated. These variations are present in juvenile specimens. The study indicates that the original definition of Polygnathus brevilamina is too narrow and that a broader concept of speciation is needed if conodont species are to be useable.

Publication Date

1966

Journal Title

Proceedings of the Iowa Academy of Science

Volume

73

Issue

1

First Page

263

Last Page

269

Copyright

© Copyright 1966 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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