Trilobita - Ptychopariida - Marjumiidae
Synonyms: Armonia Walcott 1924, Metisia Resser 1937, Perioura Resser 1938
Parent taxon: Marjumiidae according to P. A. Jell and J. M. Adrain 2002
See also Palmer 1954, Resser 1936 and Sepkoski 2002
Sister taxa: Anemocephalops, Coosella, Crepichilella, Glyphopeltis, Holmdalia, Ithyektyphus, Lecanopleura, Nasocephalus, Nericella, Nericia, Pearylandia, Petruninaspis, Schyilaspis, Shickshockia, Syspacheilus
Subtaxa: Armonia elongata Modocia arctica Modocia integella Modocia nevadensis Modocia obscura Modocia oweni Modocia penfieldi
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of Canada (5: British Columbia, Yukon collections), China (1), Greenland (11), the Russian Federation (2), United States (56: Alaska, Georgia, Idaho/ Utah, Pennsylvania, South Dakota, Texas, Utah, Vermont, Wisconsin, Wyoming)
Total: 75 collections including 90 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.