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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
Protrachyceratinae

Eoprotrachyceras (23839023)

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

Eoprotrachyceras margaritosum

Eoprotrachyceras americanum

Eoprotrachyceras gibsoni

Eoprotrachyceras subasperum

Eoprotrachyceras meeki

Eoprotrachyceras curionii

Eoprotrachyceras dunni

Eoprotrachyceras matutinum

Eoprotrachyceras lahontanum