†subfamily Prothylacyninae Ameghino 1894
Mammalia - Sparassodonta - Borhyaenidae
Alternative spelling: Prothylacynidae
Parent taxon: Borhyaenidae according to L. G. Marshall 1979
See also Ameghino 1894, de Muizon 1999, Goin et al. 2007, Marshall 1977 and Marshall 1978
Sister taxa: Angelocabrerus, Argyrolestes, Australohyaena, Borhyaeninae, Eutemodus, Fredszalaya, Nemolestes, Pharsophorus
Subtaxa: Dukecynus Prothylacynus Pseudolycopsis Pseudothylacynus
Type: Prothylacynus
Distribution: