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GEOREF RECORD

Symbiotic association of crinoids, platyceratid gastropods, and Cornulites in the Upper Ordovician (Cincinnatian) of the Cincinnati, Ohio region

Robert W. Morris and Stephen H. Felton
Symbiotic association of crinoids, platyceratid gastropods, and Cornulites in the Upper Ordovician (Cincinnatian) of the Cincinnati, Ohio region
Palaios (October 1993) 8 (5): 465-476

Abstract

The crinoid Glyptocrinus provided an elevated substrate on the Cincinnatian seaftoor suitable for exploitation by platyceratid gastropods and their attached epizoans, notably Cornulites, a tubiculous, suspension-feeding worm-like organism. The presumably coprophagous platyceratids served as a substrate for settling larvae of Cornulites. Seven species of platyceratid gastropods belonging to the genera Cyclonema and Naticonema have been found with cornulitids attached commensally in several stereotypic locations on the shell. Some cornulitid individuals survived partial overgrowth by the snail shell and continued to live commensally on the snail. Whether coprophagous on the crinoid fecal wastes or not, the platyceratids and associated cornulitids represent opportunistic secondary tierers which occupied an optimally elevated position on the calices of Glyptocrinus, above an unstable, mud bottom substrate. Cornulites, and perhaps the platyceratids, very likely took advantage of food particles made available by the crinoid's filter-feeding activities. This cornulitid-snail-crinoid association is documented in several stratigraphic units within the Cincinnatian Series.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 8
Serial Issue: 5
Title: Symbiotic association of crinoids, platyceratid gastropods, and Cornulites in the Upper Ordovician (Cincinnatian) of the Cincinnati, Ohio region
Affiliation: Wittenberg University, Department of Geology, Springfield, OH, United States
Pages: 465-476
Published: 199310
Text Language: English
Publisher: Society of Economic Paleontologists and Mineralogists, Tulsa, OK, United States
References: 27
Accession Number: 1995-011324
Categories: Stratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
N39°10'00" - N39°10'00", W84°30'00" - W84°30'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 199505
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