Thorell, 1859
The Poecilostomatoida are defined by their podoplean tagmosis, by their strongly sexually dimorphic Mxp and by the structure of bilobate Mx1 (Huys and Boxshall, 1991).
The following poecilostomatoid families are included in the present chapter:
Family Clausidiidae
Family Corycaeidae
Family Lubbockiidae
Family Oncaeidae
Family Paralubbockiidae
Family Paralubbockiidae