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The Distribution and Paleoecological Interpretation of Cornulites in the Waynesville Formation (Upper Ordovician) of Southwestern Ohio

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/5614

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dc.creator Morris, Robert W. en_US
dc.creator Rollins, Harold B. en_US
dc.date.accessioned 2005-10-01T03:04:33Z
dc.date.available 2005-10-01T03:04:33Z
dc.date.issued 1971-05 en_US
dc.identifier.citation The Ohio Journal of Science. v71 n3 (May, 1971), 159-170 en_US
dc.identifier.issn 0030-0950 en_US
dc.identifier.uri http://hdl.handle.net/1811/5614
dc.description Author Institution: Department of Geology, Wittenberg University, Springfield, Ohio and Department of Earth and Planetary Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania en_US
dc.description.abstract Seventeen species of marine invertebrates collected from the Upper Ordovician Waynesville Formation of southwestern Ohio were found encrusted by Cornulites, a presumed tubicolous annelid worm. Encrustation was interpreted as symbiotic in cases where the cornulitid tubes exhibited preferred orientation upon the exoskeleton of the host. This situation may reflect cornulitid utilization of feeding currents generated or employed by the host species. Symbiotic attachments of Cornulites were encountered most commonly on several species of brachiopods, but were also observed on a pelecypod, a monoplacophoran, two species of bryozoa, and questionably on a gastropod and nautiloid. Post-mortem encrustation of a host by Cornulites was inferred either from random orientation of the cornulitid tubes or from attachment in a manner or position incompatible with the functional morphology of the host species. Cornulites was found in post-mortem association with brachiopods, bryozoans, and a trilobite. In this situation the host species presumably provided, after death, a suitably hard substrate for cornulitid larval attachment. Symmetrically positioned cornulitid clusters on a specimen of Cyrtolites sp. cf. C. ornatus Conrad supports the accepted, but unproven, interpretation of bilaterally developed mantle-cavity organs in cyclomyan monoplacophorans. en_US
dc.format.extent 1212986 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given. en_US
dc.title The Distribution and Paleoecological Interpretation of Cornulites in the Waynesville Formation (Upper Ordovician) of Southwestern Ohio en_US