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Pelmatozoan echinoderms as colonizers of carbonate firmgrounds in Mid-Cambrian high energy environments

Samuel Zamora, Sebastien Clausen, J. Javier Alvaro and Andrew B. Smith
Pelmatozoan echinoderms as colonizers of carbonate firmgrounds in Mid-Cambrian high energy environments
Palaios (December 2010) 25 (12): 764-768

Abstract

New echinoderm holdfast discoveries from Gondwana demonstrate that pelmatozoans have been cementers able to attach to carbonate firmgrounds since the basal middle Cambrian. Echinoderms were thus colonizing shallow, high-energy environments well before the appearance of the first true carbonate hardgrounds in the Furongian. Morphological innovations and adaptations to firmground media (=substrates) were first developed in softground, clayey, offshore environments where echinoderms cemented to shell fragments. This preadaption allowed echinoderms to quickly and effectively exploit the newly emerging hardground habitats in the Furongian to Early Ordovician.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 25
Serial Issue: 12
Title: Pelmatozoan echinoderms as colonizers of carbonate firmgrounds in Mid-Cambrian high energy environments
Affiliation: Natural History Museum, Department of Palaeontology, London, United Kingdom
Pages: 764-768
Published: 201012
Text Language: English
Publisher: Society for Sedimentary Geology, Tulsa, OK, United States
References: 40
Accession Number: 2011-006708
Categories: Invertebrate paleontologyStratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch maps
N42°30'00" - N43°30'00", W07°19'60" - W02°40'00"
Secondary Affiliation: Universite des Sciences et Technologies de Lille, FRA, FranceCSIC, Centro de Astrobiologia, ESP, Spain
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: 201104
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