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The Decapoda (Crustacea) as predators on Mollusca through geologic time

Carrie E. Schweitzer and Rodney M. Feldmann
The Decapoda (Crustacea) as predators on Mollusca through geologic time
Palaios (March 2010) 25 (3): 167-182


The relationship between predator and prey is a persistent theme in marine paleontology. Herein we focus on the decapod Crustacea, the shrimps, lobsters, and crabs, and their role as predators on the Mollusca through geologic time. Five major means by which decapods crush shells or eat shelled prey might be recorded in the body-fossil record, as they require specialization of the appendages. These include use of (1) heterochelous first pereiopods, (2) molariform teeth on the fingers of the chelae, (3) a curved proximal tooth on the movable finger of the chela, (4) calcified mandibles, and (5) flattened pereiopods (walking legs). Decapods have had adaptations for durophagous predation on mollusks since the early Triassic. Durophagous adaptations had appeared among multiple clades by the Late Cretaceous. The myriad means by which decapods prey upon Mollusca, and the multiple uses for which pereiopods and other appendages are adapted, suggests that predation studies should incorporate more decapod types and more types of predation when examining predation as a driver of evolution.

ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 25
Serial Issue: 3
Title: The Decapoda (Crustacea) as predators on Mollusca through geologic time
Affiliation: Kent State University, Department of Geology, North Canton, OH, United States
Pages: 167-182
Published: 201003
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 188
Accession Number: 2010-031128
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: NSF grants EF-0531670, INT-0313606, INT-0003058, and OPP-9909184
Illustration Description: illus. incl. 1 table
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, 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: 201018
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