Trilobita - Phacopida - Cheiruridae
Synonym: Ichiyamella Kobayashi and Hamada 1986
Full reference: B. D. E. Chatterton and D. G. Perry. 1984. Silurian cheirurid trilobites from the Mackenzie Mountains, northwestern Canada. Palaeontographica Abteilung A 184(1-4):1-78
Parent taxon: Cheiruridae according to T. Kobayashi and T. Hamada 1986
See also Adrain 1998, Jell and Adrain 2002 and Sepkoski 2002
Sister taxa: Acanthoparyphinae, Actinopeltis, Anasobella, Ancyginaspis, Arcticeraurinella, Areia, Areiaspis, Borealaspis, Bornholmaspis, Ceraurinium, Cerauromeros, Cerauropeltis, Ceraurus, Chacomurus, Cheirurinae, Cheirurus, Chiozoon, Contracheirurus, Crotalocephalides, Crotalocephalina, Crotalocephalus, Cyrtometopinae, Cyrtometopus, Deiphon, Deiphoninae, Didrepanon, Eccoptochilinae, Forteyops, Foulonia, Gabriceraurus, Hammannopyge, Hapsiceraurus, Heliomera, Heliomeroides, Hemisphaerocoryphe, Holia, Holotrachelus, Hyrokybe, Junggarella, Kawina, Kolymella, Krattaspis, Ktenoura, Laneites, Lehua, Onycopyge, Osekaspis, Parisoceraurus, Pateraspis, Patomaspis, Pilekiinae, Placoparina, Pompeckia, Proromma, Protocerauroides, Pseudocheirurus, Radiurus, Ratinkaspis, Reraspis, Sphaerexochinae, Sphaexerochinae, Stubblefieldia, Sycophantia, Turantyx, Valongia, Whittakerites, Xylabion, Xystocrania, Youngia, Zazvorkaspis, Kinderlania
Subtaxa: Ichiyamella subglobula Parayoungia brennardi Parayoungia eleyae Parayoungia folinsbeei Parayoungia mclaughlini Parayoungia tuberculata
Type: Parayoungia eleyae
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whitwellian of Canada (3: Northwest Territories collections)
• Silurian of Canada (10: Northwest Territories, Nunavut), Japan (1)
Total: 14 collections including 18 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.