Corynexochina

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: †Trilobita
Ordo: †Corynexochida
Subordo: †Corynexochina
Superfamilia: †Corynexochoidea
Name

Corynexochina Kobayashi, 1935
Stratigraphic Extension

Lower Cambrian --> Upper Cambrian
References

Whittington, H.B. 2008: The Corynexochina (Trilobita): a poorly understood suborder. Journal of paleontology, 83: 1–8.

Corynexochina is a poorly understood subdivision of the trilobite order Corynexochida.[2]
References

"Suborder Corynexochina Kobayashi 1935 (trilobite)". Paleobiology Database.
Whittington, H.B. (2009), "The Corynexochina (Trilobita): A Poorly Understood Suborder", Journal of Paleontology, 83 (1): 1–8, doi:10.1666/08-047.1