Gunnell, G.F., Bown, T.M., Hutchison, J.H. & Bloch, J.I. 2008. 7 Lipotyphla. In C.M. Janis, G.F. Gunnell & M.D. Uhen (eds.), Evol. Tert. Mamm. N. Amer. 2: 89-125.