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First occurrence of a new Ocruranus-like helcionelloid mollusc from the lower Cambrian of East Gondwana
Swedish Museum of Natural History, Department of Paleobiology.ORCID iD: 0000-0001-7366-7680
Macquarie University.
Macquarie University.
2012 (English)In: Gondwana Research, ISSN 1342-937X, Vol. 22, 256-261 p.Article in journal (Refereed) Published
Abstract [en]

A new cap-shaped mollusc, Emargimantus angulatus gen. et sp. nov. is described from the Arrowie Basin of South Australia. The new species is closely comparable to mollusc species from South China and North-East Greenland previously described under the generic name Ocruranus Liu, a genus recently reinterpreted as a multiplated, possibly polyplacophoran mollusc. Emargimantus is interpreted as a univalved helcionelloid mollusc and differs from Ocruranus in both morphology and function. E. angulatus represents the first discovery of Ocruranus-like helcionelloids in the lower Cambrian of eastern Gondwana and demonstrates that these molluscs had a global distribution during the early Cambrian.

Place, publisher, year, edition, pages
2012. Vol. 22, 256-261 p.
Keyword [en]
Emargimantus; Helcionelloida; Ocruranus; Lower Cambrian; Gondwana
National Category
Research subject
The changing Earth; Ecosystems and species history
URN: urn:nbn:se:nrm:diva-874DOI: 10.1016/ diva2:764678
Origin and early evolution of major animal clades in the Cambrian Period
Available from: 2014-11-20 Created: 2014-11-20 Last updated: 2014-11-20Bibliographically approved

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