Zapsalis abradens (Cope)

Cope, E. D., 1876, On some extinct reptiles and batrachia from the Judith River and Fox Hills beds of Montana, Proceedings of the Academy of Natural Sciences of Philadelphia 28, pp. 340-359 : 345

Zapsalis abradens , sp. nov.

This reptile was apparently about the size of the Laelaps laevifrons . The best preserved tooth is that of a probably adult animal, as it displays considerable attrition, especially on the fiat side. Here three worn lines indicate the former existence of as many low longitudinal angles of the surface, of which the median is basal and short. The convex side exhibits four low angles of nearly equal length, all stopping short of the apex. The facets between them, excepting the anterior two, are slightly concave. The denticles are of moderate coarseness, measuring M. 00033.