First report of the early Cambrian stem group brachiopod Mickwitzia from East Gondwana

The first mickwitziid brachiopod, Mickwitzia sp., from East Gondwana is described from the lower Cambrian Ajax Limestone, Mt Scott Range in South Australia. The shells are fragmentary, but preserve sufficient details of morphology and micro-structure to allow positive identification to genus. The mo...

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Bibliographic Details
Published inGondwana research Vol. 16; no. 1; pp. 145 - 150
Main Authors Skovsted, C.B., Brock, G.A., Holmer, L.E., Paterson, J.R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2009
Subjects
Biogeography
Brachiopoda
Earth sciences
Geovetenskap
Lower Cambrian
Mickwitzia
NATURAL SCIENCES
NATURVETENSKAP
South Australia
Lower Cambrian
Biogeography
Mickwitzia
Brachiopoda
South Australia
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Summary:The first mickwitziid brachiopod, Mickwitzia sp., from East Gondwana is described from the lower Cambrian Ajax Limestone, Mt Scott Range in South Australia. The shells are fragmentary, but preserve sufficient details of morphology and micro-structure to allow positive identification to genus. The morphology of the dorsal valve apex and the extended cones on the internal surface indicate a close affinity with Mickwitzia muralensis Walcott, 1913 from the early Cambrian of British Columbia, but scarcity of material precludes detailed comparison. This find extends the known range of the pivotal stem group brachiopod Mickwitzia to East Gondwana.
ISSN:1342-937X
1878-0571
1878-0571
DOI:10.1016/j.gr.2009.02.002