Oikozetetes from the early Cambrian of South Australia

Implications for halkieriid affinities and functional morphology

John R. Paterson*, Glenn A. Brock, Christian B. Skovsted

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)


Shells of Oikozetetes and isolated halkieriid sclerites from a section of the lower Cambrian Mernmerna Formation in the Flinders Ranges, South Australia, are tentatively considered as being derived from the same scleritome. Details of shell morphology and the possible combination of biomineralized shell and sclerites suggest that Oikozetetes, if interpreted correctly, is closely related to Halkieria. A new interpretation of Oikozetetes shell morphology, in addition to the first report of paired muscle scars on the interior surface, sheds new light on the possible functional morphology of halkieriid shells and the means of attaching the shell to the body. The occurrence of Oikozetetes in South Australia extends its biostratigraphic range to the lower Cambrian and biogeographic range to East Gondwana.

Original languageEnglish
Pages (from-to)199-203
Number of pages5
Issue number2
Publication statusPublished - 2009

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