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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)
Spiralia (Spiralians)
Lophotrochozoa
Mollusca (Molluscs)
Cephalopod (Cephalopods)
Ammonoidea (Ammonoids)
Ceratitida
Noritaceae
Ophiceratidae

Ophiceras (18357742)

Children (24 direct children, 24 direct and indirect children):

Ophiceras kilenense

Ophiceras tibeticum

Ophiceras ligatum

Ophiceras himalayanum

Ophiceras ultimum

Ophiceras demissum

Ophiceras iwaiense

Ophiceras praecursor

Ophiceras subkyokticum

Ophiceras subsakuntala

Ophiceras parvum

Ophiceras noenygaardi

Ophiceras vishnuoides

Ophiceras compressum

Ophiceras commune

Ophiceras subgibbosum

Ophiceras leptodiscus

Ophiceras gibbosum

Ophiceras poulseni

Ophiceras kochi

Ophiceras greenlandicum

Ophiceras medium

Ophiceras transitorium

Ophiceras bilotense