Description. The m2 (MCT.M.657) has a trigonid 3 taller than the talonid. The paraconid is taller and more robust than the metaconid, which is short (mesiodistally compressed). The paraconid shows a well-developed basal mesial keel. The metaconid is moderately developed, exceedingly more than the half of paraconid height. The protoconid is the largest cuspid of the trigonid. The labial side of the protoconid is convex on distal view. The talonid has ca. 66 of the trigonid length and about 41 of the tooth length. The hypoconid does not preserve its apex, so its height cannot be determined. The entoconid is flattened (i.e., with some degree of labiolingual compression) and less developed when compared with the hypoconid. The hypoconulid is the largest talonid cusp and is placed slightly more labial than the entoconid. The entocristid is short and bears a carnassial notch at the mesial wall of the entoconid. The cristid obliqua is weakly developed and contacts the distal wall of the trigonid below to the carnassial notch. The anterolabial cingulid is developed (i.e., present on paraconid and protoconid). The m4 (MN 1344-V) differs from MCT.M.657 in its larger size, its trigonid being more lingually open ( trigonid basin floor is visible at lingual view), its metaconid being shorter and less voluminous than the paraconid, its less developed paraconid mesial keel, its talonid being relatively shorter than the trigonid, reaching less than half of the length of the trigonid. The talonid has ca. 37 of the trigonid length (about 27 of the tooth length). The hypoconid is very low and the entoconid is vestigial. The hypoconulid is nearly central and is the largest of the talonid cuspids. The talonid basin is narrow, shallow, and short. The entocristid is very low but much longer than the cristid obliqua. A carnassial notch is present very close to the distal wall of the metaconid. The cristid obliqua is very short and low, probably a consequence of the reduction of talonid. The anterolabial cingulid is developed and the posterobasal cingulid is very short. This tooth is identified as an m4 based on the reduced condition of the entoconid and hypoconid, and the very mesiodistally short talonid.