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Sublethal and lethal injuries of Pennsylvanian conulariids from Oklahoma

Published online by Cambridge University Press:  19 May 2016

Royal H. Mapes ,
Tim R. Fahrer  and
Loren E. Babcock
Royal H. Mapes
Affiliation:
1Department of Geological Sciences, Ohio University, Athens 45701
Tim R. Fahrer
Affiliation:
1Department of Geological Sciences, Ohio University, Athens 45701
Loren E. Babcock
Affiliation:
2Department of Geology, University of Kansas, Lawrence 66045
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Abstract

Many specimens of the conulariid Paraconularia magna (Ries) from the Tackett Formation (Upper Pennsylvanian, Missourian) of Oklahoma exhibit repaired or unrepaired injured exoskeletons. Scalloped, cleft, and embayed patterns are interpreted to be repaired sublethal damages produced by unknown events or organisms. Punctures, which are the first reported in conulariids, were not followed by exoskeletal repair and were probably lethal. Cladodont sharks are implicated as possible predators of P. magna because of a close correspondence in size and pattern between the dentition of some sharks and the punctures preserved in conulariid exoskeletons.

Type
Research Article
Information
Journal of Paleontology , Volume 63 , Issue 1 , January 1989 , pp. 34 - 37
Copyright
Copyright © The Paleontological Society 

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