Borealaspis Ludvigson 1976 (trilobite)

Trilobita - Phacopida - Cheiruridae

Synonym: Alreboaspis Pribyl and Vanek 1985

Parent taxon: Cheiruridae according to P. A. Jell and J. M. Adrain 2002

See also Sepkoski 2002

Sister taxa: Acanthoparyphinae, Actinopeltis, Anasobella, Ancyginaspis, Arcticeraurinella, Areia, Areiaspis, 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, Parayoungia, 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: Borealaspis biformis Borealaspis numitor Borealaspis whittakerensis

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Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Ordovician of Canada (20: Northwest Territories, Quebec collections)

Total: 20 collections including 21 occurrences

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Specimen images are retrieved through the ePANDDA API.


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