Children (12 direct children, 348 direct and indirect children):
Mantelliceras
(tree size 31)
Acanthoceras
(tree size 28)
Acanthoceras (ammonite)
Calycoceras
(tree size 12)
Pseudoaspidoceras
(tree size 1)
Utaturiceras
(tree size 3)
Eucalycoceras
(tree size 9)
Acanthoceratinae
(tree size 69)
Euomphaloceratinae
(tree size 74)
Mammitinae
(tree size 82)
Mantelliceratinae
(tree size 27)
Fallotitinae
Mitoniainae