Trilobita - Phacopida - Pterygometopidae
Full reference: E. A. Frederickson and J. M. Pollack. 1952. Two Trilobite Genera from the Harding Formation (Ordovician) of Colorado. Journal of Paleontology 26(4):641-644
Parent taxon: Pterygometopinae according to E. A. Frederickson and J. M. Pollack 1952
See also Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Achatella, Estoniops, Ingriops, Keilapyge, Oelandiops, Pterygometopus, Upplandiops, Yanhaoia
Subtaxa: Isalaux canyonensis
Type: Isalaux canyonensis
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of the Russian Federation (5 collections), United States (2: Colorado)
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.