 Additionally, the species-level taxonomy is in a state of flux.Until the 1970s, "Cervus" also included the members of the genera "Axis", "Dama", "Elaphurus" and "Hyelaphus", and until the late 1980s, it included members of "Przewalskium", "Rucervus" and "Rusa".With the exception of the chital ("Axis axis"), barasinga ("Rucervus duvaucelii"), Schomburgk's deer ("R. schomburgki"), and members of the genus "Dama", genetic evidence suggests all should be returned to "Cervus".