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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

Sirenites (7530138)

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

Sirenites homfrayi

Sirenites lawsoni

Sirenites nanseni

Sirenites serotinus

Sirenites inaequiornatus

Sirenites malayicus

Sirenites yakutensis

Sirenites ovinus

Sirenites hayesi

Sirenites betulinus

Sirenites senticosus