1. Alexander, J. P., 1992, Alas poor Notharctus, Natural History 101(8):54–59.
2. Alexander, J. P., 1993, The splanchnocranial anatomy of the Eocene primate Notharctus, M. A. Thesis, Hunter College, City University of New York.
3. Alexander, J. P., 1994a, Evidence for sexual dimorphism in the primate family Notharctidae, Folia Primatol. 63:59–62.
4. Alexander, J. P., 1994b, Sympatry of two species of Notharctus in the Bridger Basin, Wyoming, Jour. Vert. Paleont. 14(supplement to 3):14A.
5. Alexander, J. P., 1996, Elements of the hyoid apparatus of several Eocene adapiform primates, Jour. Vert. Paleont. 16(supplement to 3):19A.