1980 MACFADDEN & WALDROP: FLORIDA NANNIPPUS PHLEGON A mesostyle parastyle metastyle prefossette postfossette groove protoloph hypoonal plicaballi n hypocone protocone metaloph isthmus metaconid metastylid -entoconid protoconid ectoflexid 1 I hypoconid 2 3 4 5cm I I I I FIGURE 1.-Left upper (A) and lower (B) cheek teeth of Nannippus phlegon with dental nomenclature used in this study. Anterior is to the left. a K