Sigmocheilus Palmer 1960 (trilobite)

Trilobita - Olenida - Pterocephaliidae

Full reference: A. R. Palmer. 1960. Trilobites of the Upper Cambrian Dunderberg Shale, Eureka District, Nevada. United States Geological Survey Professional Paper 334-C:53-107

Parent taxon: Pterocephaliinae according to M. J. Hopkins 2011

See also Jell and Adrain 2002 and Sepkoski 2002

Sister taxa: Cernuolimbus, Pterocephalia, Strigambitus

Subtaxa: Sigmocheilus compressus Sigmocheilus delicatus Sigmocheilus flabellifer Sigmocheilus grata Sigmocheilus pogonipensis

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Ecology: fast-moving low-level epifaunal carnivore


• Cambrian of Canada (1: Yukon collection), the Russian Federation (1), United States (25: Alaska, California, Nevada, Nevada and Utah)

Total: 27 collections including 30 occurrences

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Specimen images are retrieved through the ePANDDA API.

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