Related how?

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 (21291108)

Children (22 direct children, 93 direct and indirect children):

Grammoceras (tree size 8)

Dumortieria (tree size 17)

Pleydellia (tree size 8)

Phenakoceras

Phenakocerites

Paradumortieria

Walkericeras

Nadorites

Cotteswoldia (tree size 6)

Canavarina

Pseudogrammoceras (tree size 18)

Monestieria

Phlyseogrammoceras (tree size 2)

Gruneria (tree size 3)

Costigrammoceras (tree size 1)

Pseudolillia (tree size 3)

Hudlestonia (tree size 2)

Podagrosites (tree size 2)

Catulloceras (tree size 1)

Dactylogrammites

Troitsaia

Shakraceras