Artiopoda - 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 C. J. Bentley et al. 2006
See also Jell and Adrain 2002, Lochman 1938, Palmer 1954 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 Antarctica (1 collection), Argentina (1), Australia (1), Canada (3: Newfoundland, Quebec), China (3), Mexico (1), United States (32: Nevada, South Dakota, Tennessee, Texas, Utah, Virginia, Wyoming)
Total: 42 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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