Children (17 direct children, 205 direct and indirect children):
Batissa
(tree size 42)
Cyanocyclas
(tree size 18)
Villorita
(tree size 4)
Cyrenida
Geloina
(tree size 16)
Cyrenodonax
(tree size 1)
Cyrenobatissa
(tree size 1)
Cyrena
(tree size 103)
Americana
Egeta
Egetaria
Leptosiphon
Muscatella
(tree size 1)
Neocorbicula
(tree size 1)
Neocyrena
Posostrea
(tree size 1)
Pseudocyrena