Virtually dissected jaws, both erupting the tooth at the first premolar locus, of A) Canis lupus familiaris (UMZC K3014, pointer) in anterobuccal view and B) Macroscelides proboscideus (UMZC 2011.1.4) in buccal view showing advanced mineralization of replacement teeth in Canis and lack thereof in Macroscelides. Scale bars = 5mm.