Paranomotodon angustidens (REUSS 1845) is the single described member of this genus that had worldwide distribution during the Upper Cretaceous. Known only from its relatively small teeth (to 2 cm in height) which are very similar to those of the extant threshers. Characteristic thresher details include the wide & relatively deep, smoothly contoured basal root margin and a smooth crown without cusplets. In the extinct genus, the cutting edge is complete and weak lateral cusplets (particularly on anterior teeth) may be present.