Hostname: page-component-6766d58669-bp2c4 Total loading time: 0 Render date: 2026-05-17T04:45:59.975Z Has data issue: false hasContentIssue false

Biostratigraphic significance and paleogeographic implications of Cambrian fossils from a deep core, Warren County, Ohio

Published online by Cambridge University Press:  20 May 2016

Loren E. Babcock*
Affiliation:
Department of Geological Sciences, The Ohio State University, 155 South Oval Mall, Columbus 43210

Abstract

A deep core from Warren County, Ohio, has yielded numerous fossils of Cambrian age. The specimens, which are among the first recorded from Cambrian rocks of Ohio, suggest revisions in the inferred ages of the Eau Claire and Mount Simon Formations in the Cincinnati Arch region. Trilobites indicative of Dresbachian (late Middle Cambrian to early Late Cambrian) and possibly Franconian (Late Cambrian) age are present in the upper Eau Claire Formation. By implication, the underlying Mount Simon Formation must be of earlier Dresbachian age or perhaps older. Identified trilobites from the Eau Claire Formation seem to be characteristic of inner-shelf lithofacies of Laurentia. Other body fossils from the Eau Claire Formation include inarticulate brachiopods and a graptolite. Body fossils in the lower Knox Dolomite include trilobite sclerites and echinoderm ossicles. Trace fossils are present in both units.

Information

Type
Research Article
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable