Figure 6 in Tooth morphology of Echimyidae (Rodentia, Caviomorpha): homology assessments, fossils, and evolution

Figure 6. Homologies proposed for most anterior lophids of penta- and tetralophodont lower molars; A-C, sensu Patterson & Wood (1982) and Carvalho & Salles (2004); A, penta-; B, tetra- (Pattern I); and C, tetralophodont (Pattern II) lower molars; D-F, according to this study; D, penta-; E, tetra- (Pattern I); and F, tetralophodont (Pattern II) lower molars.