Established on a single lower incisor.
The species indicated by this specimen is the largest of the genus as
yet known. The tooth is subtrihedral in section, is stout, and shows
but little curvature. The anterior and lateral faces are broad, and
the under margin to which the sides converge, is narrow. The enamel
is thick and is inflected so as to cover a small portion of the sides
as well as the front.
_Measurements._
M.
Transverse diameter of crown ·0062
Fore-and-aft diameter of crown ·007
Found at Cottonwood Creek.