Children (21 direct children, 214 direct and indirect children):
Aegasteroceras
(tree size 3)
Asteroceras
(tree size 11)
Arietites
(tree size 5)
Agassiceras
(tree size 6)
Alsatites
(tree size 6)
Arnioceras
(tree size 20)
Arniotites
(tree size 1)
Cymbites
(tree size 5)
Arietitinae
(tree size 65)
Arnioceratidae
Asteroceratinae
(tree size 41)
Alsatitinae
(tree size 13)
Proarietitinae
Hypasteroceratinae
(tree size 5)
Agassiceratinae
(tree size 5)
Pseudotropitinae
(tree size 2)
Bartoliniceras
Caenisite
(tree size 1)
Eucoroniceras
(tree size 1)
Megarietites
(tree size 2)
Epophioceroides
(tree size 1)