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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
Hildoceratoidea (Hildocerataceae)
Hildoceratidae
Grammoceratinae

Grammoceras (5593715)

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

Grammoceras portisi

Grammoceras penenudum

Grammoceras varicostatum

Grammoceras striatulum

Grammoceras penestriatulum

Grammoceras thouarsense

Grammoceras subnaxense

Grammoceras normanianum