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Olenoidea

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: Olenina
Superfamilia: Olenoidea
Familiae: Ellipsocephaloididae - Olenidae

Stratigraphic Extension

Upper Cambrian --> Upper Ordovician

Biology Encyclopedia

Images

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