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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

Sonniniidae (16992613)

Children (9 direct children, 46 direct and indirect children):

Dorsetensia (tree size 1)

Fissilobiceras

Fontannesia (tree size 3)

Guhsania

Newmarracarroceras (tree size 2)

Zurcheria

Haplopleuroceras (tree size 1)

Sonniniinae (tree size 12)

Witchelliinae (tree size 18)