Bairdiidae
(tree size 624)
Bythocyprididae
(tree size 12)
Beecherellidae
(tree size 9)
Pachydomellidae
(tree size 37)
Acratiidae
(tree size 10)
Geroiidae
Microcheilinellidae
Pussellidae
(tree size 1)
Bohlenatiidae