Children (7 direct children, 233 direct and indirect children):
Bothriembryon
(tree size 43)
Placostylus
(tree size 74)
Flax snail
Prestonella
(tree size 3)
Placostylinae
(tree size 84)
Plectostylus
(tree size 14)
Prestonellinae
(tree size 1)
Bothriembryontinae
(tree size 7)