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Life-forms

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: †Phacopida
Subordo: †Calymenina
Superfamiliae: †Calymenoidea
Name

Calymenina Swinnerton, 1915
Stratigraphic Extension
Lower Ordovician --> Upper Devonian (Frasnian)

Calymenina is a suborder of the trilobite order Phacopida.[1]
References

Sam Gon III. "Order Phacopida". Retrieved November 13, 2010.

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Biology Encyclopedia

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