Trogolemur storeri n. sp. zoobank.org/ 99CE821F-1FDA-4FC0-A7CE-AC1B6A84971F Type. Left upper first molar discovered by K. A. Prufrock in matrix collected by John Storer and crew, RSM P3450.1466 (fig. 2A, 2E). Horizon and type locality. Interbedded conglomerate and coarse sandstone of Uintan middle Eocene age, Swift Current Creek locality, southwestern Saskatchewan, Canada (Russell, 1965a, 1965b, 1972; Storer, 1978, 1996). Diagnosis. Approximately 30% smaller in linear dimensions than Trogolemur leonardi ; buccal notch much shallower; greater development of lingual cingulum. Differs from Trogolemur myodes in M1 being wider relative to length, more pronounced lingual cingulum, much shallower buccal notch. Differs from Trogolemur amplior in being considerably smaller. Differs from Trogolemur myodes in m3 having much more taper distally, with long and narrow hypoconulid lobe. Differs from Trogolemur fragilis in having a less distinct paraconid on m3 that sits closer to the metaconid, slightly longer and narrower hypoconulid lobe. Etymology. ‘storeri’ named for John E. Storer who described the first primates from the Swift Current Creek locality and in honor of his extensive contributions to Canadian paleontology. Hypodigm. Lm3, RSM P3450.1467; Rm3, RSM P3450.1468. Summary of Changes The following list summarizes suggested changes to the record for the genus Trogolemur . • Trogolemur myodes USNM 417396 is an M1, not an M2. • Trogolemur leonardi RSM P 1899.1014 and RSM P1899.1016 are M3s, not M2s. • Trogolemur leonardi RSM P 1899.1007 is an M2, not an M1. • Trogolemur leonardi RSM P 1899.1002, RSM P1899.1003, and RSM P1899.1004, all identified as m1 or m2, are likely m1s. New records of Trogolemur include a left M1 (RSM P3450.1466), a left m3 (RSM P3450.1467), and a right m3 (RSM P3450.1468). These are described as a new species, Trogolemur storeri . With very little morphological difference between Trogolemur storeri and Trogolemur leonardi apart from size, and with little geographic separation, it seems likely that ...