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An Ordovician lobopodian from the Soom Shale Lagerstatte, South Africa

By Rowan J. Whittle, Sarah E. Gabbott, Richard J. Aldridge and Johannes Theron

Abstract

The first lobopodian known from the Ordovician is described from the Soom Shale Lagerstatte, South Africa. The organism shows features homologous to Palaeozoic marine lobopodians described from the Middle Cambrian Burgess Shale, the Lower Cambrian Chengjiang biota, the Lower Cambrian Sirius Passet Lagerstatte and the Lower Cambrian of the Baltic. The discovery provides a link between marine Cambrian lobopodians and younger forms from the Silurian and Carboniferous. The new fossil preserves an annulated trunk, lobopods with clear annulations, and curved claws. It represents a rare record of a benthic organism from the Soom Shale, and demonstrates intermittent water oxygenation during the deposition of the unit

Topics: Biology and Microbiology, Earth Sciences
Publisher: Wiley-Blackwell Publishing
Year: 2009
DOI identifier: 10.1111/j.1475-4983.2009.00860.x
OAI identifier: oai:nora.nerc.ac.uk:11377
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