Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony

An almost complete specimen of the branchiosaurid temnospondyl <i>Apateon gracilis</i> (Credner, 1881) with a skull length of approximately 7 mm from the Early Permian Döhlen Basin in Saxony is described that possesses a nearly complete conspecific specimen of approximately 4 mm skull le...

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Main Author: F. Witzmann
Format: Article
Language:English
Published: Copernicus Publications 2009-02-01
Series:Fossil Record
Online Access:http://www.foss-rec.net/12/7/2009/fr-12-7-2009.pdf
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spelling doaj-8b3c3885d8b241e7932694a487052fe92020-11-24T21:04:04ZengCopernicus PublicationsFossil Record2193-00662193-00742009-02-0112171110.5194/fr-12-7-2009Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from SaxonyF. Witzmann0Museum für Naturkunde Berlin, Invalidenstraße 43, 10115 Berlin, GermanyAn almost complete specimen of the branchiosaurid temnospondyl <i>Apateon gracilis</i> (Credner, 1881) with a skull length of approximately 7 mm from the Early Permian Döhlen Basin in Saxony is described that possesses a nearly complete conspecific specimen of approximately 4 mm skull length in its digestive tract. This is the first evidence of cannibalistic behaviour in small growth stages of branchiosaurids, whose dentition and hyobranchial morphology suggest adaptations to the capture of small invertebrates and feeding on small phyto- and zooplankton by filtering from the water. Therefore, cannibalism in small branchiosaurids certainly represents an exceptional case, possibly triggered by unfavourable environmental conditions. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.200800006" target="_blank">10.1002/mmng.200800006</a>http://www.foss-rec.net/12/7/2009/fr-12-7-2009.pdf
collection DOAJ
language English
format Article
sources DOAJ
author F. Witzmann
spellingShingle F. Witzmann
Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony
Fossil Record
author_facet F. Witzmann
author_sort F. Witzmann
title Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony
title_short Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony
title_full Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony
title_fullStr Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony
title_full_unstemmed Cannibalism in a small growth stage of the Early Permian branchiosaurid <i>Apateon gracilis</i> (Credner, 1881) from Saxony
title_sort cannibalism in a small growth stage of the early permian branchiosaurid <i>apateon gracilis</i> (credner, 1881) from saxony
publisher Copernicus Publications
series Fossil Record
issn 2193-0066
2193-0074
publishDate 2009-02-01
description An almost complete specimen of the branchiosaurid temnospondyl <i>Apateon gracilis</i> (Credner, 1881) with a skull length of approximately 7 mm from the Early Permian Döhlen Basin in Saxony is described that possesses a nearly complete conspecific specimen of approximately 4 mm skull length in its digestive tract. This is the first evidence of cannibalistic behaviour in small growth stages of branchiosaurids, whose dentition and hyobranchial morphology suggest adaptations to the capture of small invertebrates and feeding on small phyto- and zooplankton by filtering from the water. Therefore, cannibalism in small branchiosaurids certainly represents an exceptional case, possibly triggered by unfavourable environmental conditions. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.200800006" target="_blank">10.1002/mmng.200800006</a>
url http://www.foss-rec.net/12/7/2009/fr-12-7-2009.pdf
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