Table 1. Measurements (mm) of the horn core. *, estimated measurement; †, fossil taxon; 1, range of measurements from Valdez (1982); 2, Matthew and Cook (1909) data not useable, data here from cast, tip near complete, all measurements are minimum or estimates; 3, Merriam (1918), data here from cast, tip near complete, all measurements are minimum or estimates. Measurements for Sinocapra minor from Chen (1991). Measurements for Ovis shantungensis from Matsumoto (1926). Measurements for Oreamnos species from Mead and Lawler (1994) and Jass et al. (2000).