Atelecyclidae
 Atelecyclidae is a family of crabs belonging to the Cancroidea superfamily and currently containing eight genera two of which are extinct. However the genera other than Atelecyclus and Pseudocorystes do not belong in the Cancroidea and are to be removed from the family.Atelecyclus† Levicyclus† PalaeotrichiaPeltarionPodocatactesPseudocorystesProtopeltarionTrichopeltarion↑ ↑ ↑