Children (11 direct children, 1850 direct and indirect children):
Noetiidae
(tree size 94)
Arcidae
(tree size 946)
Ark clam family
Glycymerididae
(tree size 322)
False ark shell
(tree size 19)
Cucullaeidae
Philobryidae
(tree size 199)
Limopsidae
(tree size 223)
Parallelodontidae
(tree size 31)
Arcoidea
(tree size 2)
Limopsoidea
(tree size 1)
Glyptarcoidea
(tree size 2)
Aegilops