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GEOREF RECORD

Crab death assemblages from Laguna Madre and vicinity, Texas

Roy E. Plotnick, Steve McCarroll and Eric N. Powell
Crab death assemblages from Laguna Madre and vicinity, Texas
Palaios (February 1990) 5 (1): 81-87

Abstract

Crabs are a major component of modern marine ecosystems, but are only rarely described in fossil assemblages. Studies of brachyuran taphonomy have examined either the fossil end-products of the taphonomic process or the very earliest stages of decay and decomposition. The next logical step is the analysis of modern crab death assemblages; i.e., studies that examine taphonomic loss in areas where the composition of the living assemblage is known. We studied crab death assemblages in shallow water sediments at several localities in and near Laguna Madre, Texas. Nearly every sample examined contained some crab remains, most commonly in the form of isolated claws (dactyl and propodus). A crab fauna associated with a buried grass bed contained abundant remains of the xanthid crab Dyspanopeus texanus, including carapaces, chelipeds, and thoraxes, as well as fragments of the portunid Callinectes sapidus and the majiid Libinia dubia. Crab remains may be an overlooked portion of many preserved benthic assemblages, both in recent and modern sediments.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 5
Serial Issue: 1
Title: Crab death assemblages from Laguna Madre and vicinity, Texas
Affiliation: Univ. Ill. at Chicago, Dep. Geol. Sci., Chicago, IL, United States
Pages: 81-87
Published: 199002
Text Language: English
Publisher: Society of Economic Paleontologists and Mineralogists, Tulsa, OK, United States
References: 27
Accession Number: 1992-017396
Categories: Invertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, sketch maps
N18°00'00" - N30°04'00", W98°00'00" - W80°30'00"
N25°45'00" - N36°30'00", W106°30'00" - W93°30'00"
Secondary Affiliation: Tex. A&M Univ., USA, United States
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: 1992
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