Trilobita - Phacopida - Cheiruridae
Alternative combination: Acanthoparypha evetti
Full reference: B. D. E. Chatterton and R. Ludvigsen. 1976. Silicified Middle Ordovician trilobites from the South Nahanni River Area, District of Mackenzie, Canada. Palaeontographica Abteilung A 154(1-3):1-106
Belongs to Acanthoparypha according to B. D. E. Chatterton and R. Ludvigsen 1976
See also DeMott 1987
Sister taxa: Acanthoparypha chiropyga, Acanthoparypha echinoderma, Acanthoparypha goniopyga, Acanthoparypha perforata, Acanthoparypha subcircularis
Type specimen: GSC 40403, a cephalon/head (cranidium)
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Canada (1: Northwest Territories collection)
• Chazyan of Canada (7: Northwest Territories)
• Ordovician of United States (3: Illinois, Iowa, Minnesota)
Total: 11 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.