Document Type

Research

Abstract

Parametrs characteristic of Atrypa Histrix, collected from various localities of the Cerro Gordo Member of the Upper Devonian Lime Creek Formation, were measured as: 1) Length, 2) Width, 3) Thickness, 4) Number of growth lines, and 5) Number of plications. The consistency of data obtained within a sample location was tested against similar data representing the total population by means of F-tests. Results suggested that the three sample locations represented at least two statistically random sample populations. These statistical differences in the single biologic population may be alternately interpreted as: 1) the population differed prior to preservation, or 2) is attributed to post depositional changes at the sample locations. F-tests of the parameter ratios increased resolution sufficiently to suggest a single sample population statistically characteristic of the one biologic population.

Publication Date

1969

Journal Title

Proceedings of the Iowa Academy of Science

Volume

Issue

First Page

267

Last Page

274

Copyright

Language

File Format

application/pdf

Recommended Citation

Simon, D. E. and Elwell, J. H. (1969) "Statistical Methods for Integrating Populations of a Fauna Collected at Various Localities," Proceedings of the Iowa Academy of Science, 76(1), 267-274.
Available at: https://scholarworks.uni.edu/pias/vol76/iss1/38

Download

Comments?

COinS

Statistical Methods for Integrating Populations of a Fauna Collected at Various Localities

Authors