Fig. 89. P. wingei—natural size; A, first molar;
B, third molar.
P. wingei Ameghino
P. wingei Amegh., 1895, Bol. Inst. Geog. Argen., t. 15, p. 645.
P. wingei Amegh., 1897, Bol. Inst. Geog. Argen., t. 18, p. 485.
This species is founded on a couple of isolated molars, probably belonging to the same individual. The following measurements are given:
| Upper molar 1, | length | 22 mm., | width | 26 mm. |
| Upper molar 3, | length | 24 mm., | width | 29 mm. |
P. cingulatus Amegh., loc. cit. above, is based on an incomplete upper molar, probably the second, which is distinguished by having the internal cingulum excessively developed. It measures 30 mm. in length.
Lophocoelus Ameghino
Lophocoelus Amegh., 1904, Anal. Soc. Cient., Rep. Argen., t. 58, p. 245.
Lophocoelus Amegh., 1904, Anal. Mus. Nac., ser. 3, t. 3, p. 352.
The genus is founded on a single upper third molar from Mazaredo, which is distinguished by a feeble style on the external face, by the anterior lobe being obliquely placed, and by the presence of a small secondary bay on the posterior side of the great internal basin.