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
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• 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
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.