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.