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
Otoceratina
Otocerataceae (Otoceratoidea)
Anderssonoceratidae
Anderssonoceratinae
Pachyrotoceras (23840873)
Children (2 direct children, 2 direct and indirect children):
Pachyrotoceras laevigatum
Pachyrotoceras fengchengense