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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
Protogrammoceratinae

Protogrammoceras (23838645)

Children (20 direct children, 20 direct and indirect children):

Protogrammoceras nitescens

Protogrammoceras pseudodilectum

Protogrammoceras ionicus

Protogrammoceras isselioides

Protogrammoceras skidegatense

Protogrammoceras geometricum

Protogrammoceras kurrianum

Protogrammoceras paltum

Protogrammoceras diornatum

Protogrammoceras peyrei

Protogrammoceras madagascariense

Protogrammoceras monestieri

Protogrammoceras fieldingii

Protogrammoceras turgidulum

Protogrammoceras sublaeve

Protogrammoceras depressum

Protogrammoceras gabillyi

Protogrammoceras serotinum

Protogrammoceras occidentale

Protogrammoceras ionicum