Trilobita - Ptychopariida - Tricrepicephalidae
Synonym: Coleopachys Raymond 1937
Full reference: C. E. Resser. 1935. Nomenclature of some Cambrian trilobites. Smithsonian Miscellaneous Collections 93(5):1-46
Parent taxon: Tricrepicephalidae according to A. R. Palmer 1954
See also Jell and Adrain 2002, Lochman 1938 and Sepkoski 2002
Sister taxa: Erediaspis, Tricrepicephalus
Subtaxa: Meteoraspis borealis Meteoraspis metra Meteoraspis mutica Meteoraspis orientalis
Type: Ptychoparia metra
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of Australia (1 collection), Canada (3: Newfoundland, Quebec), China (3), United States (31: Nevada, South Dakota, Tennessee, Texas, Utah, Virginia, Wyoming)
Total: 38 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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