Trilobita - Phacopida - Pterygometopidae
Full reference: R. Ludvigsen and B. D. E. Chatterton. 1982. Ordovician Pterygometopidae (Trilobita) of North America. Canadian Journal of Earth Sciences 19:2179-2206
Parent taxon: Eomonorachinae according to R. Ludvigsen and B. D. E. Chatterton 1982
See also Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Calyptaulax, Denella, Eomonorachus, Liocnemis, Podowrinella, Sceptaspis
Subtaxa: Tricopelta breviceps Tricopelta mackenziensis
Type: Tricopelta mackenziensis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of Canada (1: Northwest Territories collection), United States (1: Indiana)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.