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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)
Ammonitida
Ammonitina
Haplocerataceae (Haploceratoidea)
Oppeliidae

Aconeceratinae (21291258)

Children (7 direct children, 11 direct and indirect children):

Protaconeceras

Falciferella

Gyaloceras

Koloceras (tree size 1)

Sanmartinoceras (tree size 2)

Sinzovia (tree size 1)

Theganoceras