Figure 1 in High-level phylogeny of early Tertiary rodents: dental evidence

Figure 1. Occlusal dental morphology of upper and lower teeth and related nomenclature (modified after Wood & Wilson, 1936) used for describing the selected characters employed in the phylogenetic analysis. Upper molars: Aah, anterior arm of hypocone; Aam, anterior arm of metacone; Al, anteroloph; Ay, anterostyle; Enl, endoloph; Ey, enterostyle; H, hypocone; M, metacone; Mcu, metaconule; Mel, metaloph; Mpc, metacone-protocone connection; Mr, mure; Ms, mesostyle; Msl, mesoloph; Msul, mesolophule; Nenl, neo-endoloph; P, protocone; Pa, paracone; Pap, posterior arm of paracone; Pcu, protoconule; Prl, protoloph; PruII, protolophule II; Psl, posteroloph; Py, parastyle. Lower molar: Aaed, anterior arm of entoconid; Aahd, anterior arm of hypoconid; Ad, anteroconid; Acd, anterocingulid (anterolophid); Ald, anterolophulid; Ecd, ectolophid; Emsd, ectomesolophid; Et, entoconid; Etd, ectostylid; Hd, hypoconid; Hld, hypolophid; Hud, hypoconulid; Mcd, mesoconid; Md, metaconid; MedicalI, metalophulid I (ancestral paralophid); MedicalII, metalophulid II (= protolophid or posterior arm of protoconid); Mfd, metafossettid; Msd, mesolophid; Mstd, mesostylid; Pamd, posterior arm of metaconid; Prd, protoconid; Psd, posterolophid.