Incertae Sedis (Ptychopariina)

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Superphylum: Ecdysozoa
Phylum: Arthropoda
Subphylum: †Trilobitomorpha
Classis: Trilobita
Ordo: Ptychopariida
Subordo: Ptychopariina
Superfamilia: Incertae Sedis
Familiae: Avoninidae - Catillicephalidae - Ithyophoridae - Plethopeltidae

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Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License

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