Trilobita - Phacopida - Cheiruridae
Full reference: H. B. Whittington and W.R., I.I. Evitt. 1953. Silicified Middle Ordovician trilobites. Geological Society of America Memoir 59:1-139
Parent taxon: Acanthoparyphinae according to H. B. Whittington and W.R., II. Evitt 1953
See also Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Nieszkowskia, Pandaspinapyga
Subtaxa: Acanthoparypha chiropyga Acanthoparypha echinoderma Acanthoparypha evitti Acanthoparypha goniopyga Acanthoparypha perforata Acanthoparypha subcircularis
Type: Acanthoparypha perforata
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Chazyan of Canada (12: Northwest Territories collections)
• Whiterockian of Canada (1: Northwest Territories), United States (2: New York)
• Ordovician of Canada (10: Northwest Territories), Ireland (1), the United Kingdom (1), United States (14: Illinois, Illinois, Iowa, Minnesota, Missouri, Virginia)
Total: 41 collections including 45 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.