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Crinoid anchoring strategies for soft-bottom dwelling

Adolf Seilacher and Copeland MacClintock
Crinoid anchoring strategies for soft-bottom dwelling
Palaios (June 2005) 20 (3): 224-240


During the geologic history of crinoids, many groups have modified their distal stems to function as anchors in soft sediments, but more so in the Paleozoic than in later times. Major strategies were passively implanting anchors, cirral root systems, coils, and stemless reclining. In Paleozoic roots, the stereom usually consists of crystallographically individualized ossicles, but articulations may be hidden by a tough cuticle that protected the living tissue of immersed parts and stiffened them with cortical stereom. Post-Paleozoic representatives produced similar anchoring structures by different fabricational pathways, including non-articulated root systems.

ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 20
Serial Issue: 3
Title: Crinoid anchoring strategies for soft-bottom dwelling
Affiliation: Yale University, Department of Geology and Geophysics, New Haven, CT, United States
Pages: 224-240
Published: 200506
Text Language: English
Publisher: Society of Economic Paleontologists and Mineralogists, Tulsa, OK, United States
References: 44
Accession Number: 2005-072025
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N35°00'00" - N71°00'00", W25°00'00" - E75°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 200523
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