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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
Hammatoceratoidea

Hammatoceratidae (20687154)

Children (5 direct children, 114 direct and indirect children):

Hammatoceratinae (tree size 76)

Zurcheriinae (tree size 4)

Erycitinae (tree size 25)

Podagrosiceratinae (tree size 3)

Rarenodia (tree size 1)