FIGURE 2. Tooth terminology for leporid p3s. AER, anteroexternal reentrant (= protoflexid); AIR, anterointernal reentrant (= paraflexid); AR, anterior reentrant (= anteroflexid); PER, posteroexternal reentrant (= hypoflexid); PIR, posterointernal reentrant (= mesoflexid), TH, thick enamel on posterior border of trigonid; TN, thin enamel on anterior border of talonid. Tooth terminology is modified from White (1991).