Taxonomic history of the genus Myocastor

After Mckenna & Bell, 1997

    Myocastor Kerr, 1792
        Myopotamus Commerson, in É. Geoffroy Saint-Hilaire, 1805
        Potamys Larranhaga, 1823
        Mastonotus Wesmael, 1841
        Guillinomys Lesson, 1842
      including:
        Tramyocastor Rusconi, 1936

        Myocastor coypus (Molina, 1782)

Reference(s):

McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631