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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Mandibulata
Myriapoda (Myriapods)
Diplopoda (Millipedes)
Chilognatha
Helminthomorpha
Eugnatha
Nematophora
Chordeumatida
Striariidea
Caseyoidea
Caseyidae

Opiona (4298490)

Children (15 direct children, 18 direct and indirect children):

Opiona goedeni

Opiona bifurcata

Opiona communis (tree size 3)

Opiona scytonotoides

Opiona casualis

Opiona exigua

Opiona berryessae

Opiona siliquae

Opiona facetia

Opiona distincta

Opiona columbiana

Opiona confusa

Opiona fisheri

Opiona graeningi

Opiona hatchi