It is quite possible the ancestral form of all killies was something like an Epiplatys or (Asian) Aplocheilus. In fact, Scheel, in his tome _Atlas of Killifish of the Old World_ saw no reason to separate Epiplatys from Aplochelius and all the pictures of Epiplatys in that book are referred to as Aplocheilus. This may have been too rash - time will tell - but to this day Epiplatys is Epiplatys. For now anyway.

Tribe Adamantini Huber, 2000. [Huber, J.H. 2000. Killi-Data 2000. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Cyprinodontiformes). Cybium, Soc. fr. Ichtyologie, Ed., Paris.: 538 pp., figs.] * Genus Adamas Huber, 1979. Subfamily Epiplateinae Huber, 2000. [Huber, J.H. 2000. Killi-Data 2000. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Cyprinodontiformes). Cybium, Soc. fr. Ichtyologie, Ed., Paris.: 538 pp., figs.] Tribe Epiplateini Huber, 2000. * Genus Epiplatys Gill, 1862.