Protictis haydenianus (formerly Didymictis - Cope 1882) Middle Paleocene (~60 mya), ~75 cm in length, is known from a partial skull. Derived from a sister to Vulpavus, Protictis was a phylogenetic predecessor to Procyon. An earlier nesting here with bats was based on the line drawing reconstruction by Mac Intyre, but the new nesting is based on the published photo of the fossil above.
Protictis microlestes (Bryanictis - Mac Intyre 1966, Simpson 1935) Middle Paleocene
Protictis tenuis (Simpsonictis - Mac Intyre 1962) Late Paleocene, was the smallest species in this genus.
Distinct from Vulpavus, the skull of Protictis haydenianus had a lower orbit and a shorter rostrum with longer canines and smaller incisors.