Children (14 direct children, 126 direct and indirect children):
Aspidoceras
(tree size 8)
Aspidoceratinae
(tree size 45)
Benacoceras
Peltoceratinae
(tree size 46)
Simoceratinae
(tree size 4)
Unipeltoceras
(tree size 2)
Physodoceras
Epaspidoceras
Charactoceras
Orthaspidoceras
Physodoceratinae
(tree size 1)
Epipeltoceratinae
(tree size 3)
Euaspidoceratinae
(tree size 3)
Hybonoticeratinae