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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
Trachyceratidae

Sirenitinae (23833059)

Children (8 direct children, 22 direct and indirect children):

Pterosirenites (tree size 4)

Striatosirenites (tree size 4)

Pamphagosirenites (tree size 2)

Sirenotrachyceras (tree size 1)

Seimkanites (tree size 1)

Neosirenites (tree size 1)

Norosirenites (tree size 1)

Diplosirenites