Children (21 direct children, 183 direct and indirect children):
Anasirenites
(tree size 3)
Anolcites
(tree size 9)
Arctosirenites
(tree size 4)
Austrotrachyceras
(tree size 1)
Frankites
(tree size 3)
Pseudosirenites
(tree size 4)
Sirenites
(tree size 11)
Vredenburgites
Daxatina
(tree size 4)
Sirenitinae
(tree size 22)
Anolcitinae
(tree size 14)
Arpaditinae
(tree size 28)
Protrachyceratinae
(tree size 22)
Haoceratinae
(tree size 5)
Trachyceratinae
(tree size 3)
Trachyceras
(tree size 21)
Sympolycyclus
(tree size 3)
Hannaoceras
(tree size 1)
Brotheotrachyceras
(tree size 2)
Boreotrachyceras
(tree size 1)
Okhototrachyceras
(tree size 1)