Children (11 direct children, 59 direct and indirect children):
Estonioceras
(tree size 3)
Barrandeocerina
(tree size 15)
Barrandeoceratidae
(tree size 5)
Lituitidae
(tree size 6)
Tarphyceratidae
(tree size 4)
Trocholitidae
(tree size 6)
Estonioceratidae
(tree size 4)
Vasalemmoceras
Ophidioceratidae
(tree size 3)
Magdoceras
Discoceratidae
(tree size 2)