Children (31 direct children, 7072 direct and indirect children):
Ancyloceratina
(tree size 821)
Ammonitina
(tree size 5130)
Lytoceratina
(tree size 293)
Phylloceratina
(tree size 109)
Turrilitina
Cuyaniceras
Discostella
Paracrioceras
(tree size 1)
Proleopoldia
Muniericeratidae
(tree size 13)
Virgatosphinctes
(tree size 10)
Hamulinidae
(tree size 16)
Scaphitidae
(tree size 94)
Psiloceratidae
(tree size 57)
Echioceratidae
(tree size 73)
Phylloceratoidea
(tree size 189)
Phylloceraatida
Aegocrioceratidae
(tree size 18)
Perisphinctoidae
(tree size 4)
Flemingitidae
(tree size 43)
Gephuroceratidae
(tree size 98)
Stephanocerina
Psilocerina
Cardiocerina
Ancylocerina
Haplocerina
Sinuiceratidae
(tree size 5)
Dudresnayiceras
(tree size 2)
Steueroceras
Ammonites
(tree size 62)
Laevaptychus
Aptychus
(tree size 3)