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.
L. macrostomus Amegh., loc. cit. above.
This species is the only one described, and has the generic features, the upper m. 3 being 21 mm. long, by 25 mm. wide.