The species Alphadon jasoni was originally described by Storer (1991); it was subsequently transferred to the herpetotheriid genus Nortedelphys.
Loài Nortedelphys jasoni ban đầu được Storer mô tả thuộc chi Alphadon (năm 1991); tuy nhiên, it was subsequently transferred to the herpetotheriid genus Nortedelphys.