Cheiruridae

Cheiruridae Temporal range: Ordovician–Devonian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Phacopida
Family:	Cheiruridae Hawle & Corda, 1847
Selected genera
Cheirurus (type genus) Deiphon Crotalocephalus Ceraurus

The family Cheiruridae was a family of phacopid trilobites of the suborder Cheirurina. Its members, as with other members of the suborder, had distinctive pygidia modified into finger-like spines. They first appeared near the very beginning of the Ordovician, and persisted until the Devonian.^[1]

Genera

• Acanthoparypha
• Actinopeltis
• Anasobella
• Ancyginaspis
• Apollonaspis
• Arcticeraurinella
• Aleia
• Areiaspis
• Azyptyx
• Barrandeopeltis
• Borealaspis
• Bornholmaspis
• Bufoceraurus
• Ceraurinella
• Ceraurinium
• Ceraurinus
• Cerauromeros
• Cerauropeltis
• Ceraurus
• Cheirurus
• Chiozoon
• Contracheirurus
• Courtessolium
• Crotalocephalides
• Crotalocephalina
• Crotalocephalus
• Ceraurinella
• Cybelloides
• Cyrtometopus
• Deiphon
• Didrepanon
• Eccoptochile
• Eccoptochiloides
• Forteyops
• Foulonia
• Gabriceraurus
• Geracephalina
• Hadromeros
• Hammannopyge
• Hapsiceraurus
• Heliomera
• Heliomeroides
• Holia
• Hyrokybe
• Junggarella
• Kawina
• Kolymella
• Krattaspis
• Ktenoura
• Laneites
• Lehua
• Leviceraurus
• Nieszkowskia
• Onycopyge
• Osekaspis
• Pandaspinapyga
• Paraceraurus
• Parasphaerexochus
• Parayoungia
• Parisoceraurus
• Pateraspis
• Patomaspis
• Placoparina
• Pompeckia
• Proromma
• Protocerauroides
• Pseudocheirurus
• Pseudosphaerexochus
• Radiurus
• Ratinkaspis
• Reraspis
• Skelipyx
• Sphaerexochus
• Sphaerocoryphe
• Stubblefieldia
• Sycophantia
• Turantyx
• Valongia
• Whittakerites
• Xylabion
• Xystocrania
• Youngia
• Zazvorkaspis

References

1. ^ Curtis R. Congreve & Bruce S. Lieberman (2010). "Phylogenetic and biogeographic analysis of deiphonine trilobites" (PDF). Journal of Paleontology 84 (1): 128–136. doi:10.1666/09-026.1. http://trilobites.lifedesks.org/files/trilobites/pleo-84-01-10.pdf.