taxonID	type	description	language	source
03B387CDFFCA7F35FC3FFF1C13675377.taxon	materials_examined	Type. Right upper second molar, RSM P 1899.1007. Horizon and type locality. Channel sands and gravels of the mid-to-late Eocene age along the east side of Lac Pelletier, southwestern Saskatchewan, Canada (Storer, 1983, 1987, 1996). Revised diagnosis. Teeth 30 - 40 % larger in linear dimensions than Trogolemur myodes; upper molars broader relative to length, more distinct and larger protocone lobe, smaller metaconule, more distinct lingual cingulum, more reduced metacone on M 3; lower molars less exodaenodont with less pronounced buccal cingulum; m 3 protoconid and metaconid closer to each other; m 3 hypoconulid lobe narrower. Differs from Trogolemur amplior in being significantly smaller; notch buccal to the entoconid and distinct break in cristid obliqua on m 1 / m 2. Differs from Trogolemur fragilis in being significantly larger; m 3 protoconid and metaconid closer to each other. Hypodigm. LM 1, RSM P 1899.1005; RM 1, RSM P 1899.1006; LM 3, RSM P 1899.1014; RM 3, RSM P 1899.1016; Lm 1 or m 2, RSM P 1899.1002; Rm 1 or m 2, RSM P 1899.1003; Rm 1 or m 2, RSM P 1899.1004; Rm 1 or m 2, RSM P 1900.51.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFCA7F34FC72FBC115C8549F.taxon	materials_examined	Type. Left upper first molar discovered by K. A. Prufrock in matrix collected by John Storer and crew, RSM P 3450.1466 (fig. 2 A, 2 E). Horizon and type locality. Interbedded conglomerate and coarse sandstone of Uintan middle Eocene age, Swift Current Creek locality, southwestern Saskatchewan, Canada (Russell, 1965 a, 1965 b, 1972; Storer, 1978, 1996).	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFCA7F34FC72FBC115C8549F.taxon	diagnosis	Diagnosis. Approximately 30 % smaller in linear dimensions than Trogolemur leonardi; buccal notch much shallower; greater development of lingual cingulum. Differs from Trogolemur myodes in M 1 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 m 3 having much more taper distally, with long and narrow hypoconulid lobe. Differs from Trogolemur fragilis in having a less distinct paraconid on m 3 that sits closer to the metaconid, slightly longer and narrower hypoconulid lobe.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFCA7F34FC72FBC115C8549F.taxon	etymology	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. Lm 3, RSM P 3450.1467; Rm 3, RSM P 3450.1468. Summary of Changes The following list summarizes suggested changes to the record for the genus Trogolemur. • Trogolemur myodes USNM 417396 is an M 1, not an M 2. • Trogolemur leonardi RSM P 1899.1014 and RSM P 1899.1016 are M 3 s, not M 2 s. • Trogolemur leonardi RSM P 1899.1007 is an M 2, not an M 1. • Trogolemur leonardi RSM P 1899.1002, RSM P 1899.1003, and RSM P 1899.1004, all identified as m 1 or m 2, are likely m 1 s. New records of Trogolemur include a left M 1 (RSM P 3450.1466), a left m 3 (RSM P 3450.1467), and a right m 3 (RSM P 3450.1468). 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 the former is a phyletic antecedent to the latter. New Discoveries – Walshina An upper molar resembling Trogolemur leonardi, but approximately 50 % larger in linear dimensions, was discovered in the SCC matrix (Figure 5). Slight erosion along the buccal and distal margins has altered the outline of the tooth. Nevertheless, this tooth (RSM P 3450.1469) is recognizable as a primate right M 1 (or possibly M 2). The tooth has a broad basin distal to the protocone; this is distinctive of trogolemurin omomyoids. It greatly resembles CM 15635 (LM 1) from the Uintan Badwater Creek, Wyoming. That tooth was originally described as Phenacolemur mcgrewi by Peter Robinson, then allocated to Ignacius by Bown and Rose (Robinson, 1968; Bown and Rose, 1976). Subsequent analysis by López-Torres and colleagues has shifted this material from the Paromomyidae (Plesiadapiformes) to the Trogolemurini (Omomyidae), renaming the relevant material as Walshina mcgrewi (López-Torres, et al., 2018). We provisionally refer the new tooth to Walshina mcgrewi. Given the rarity of primate material at SCC, it is interesting that there are two known species of trogolemurin omomyid at this locality. Thus, diversity of trogolemurins is slightly higher here than in contemporaneous faunas in Wyoming or southern California. Despite the enormous geographic separation, trogolemurins existed simultaneously in all these places. This speaks to the similarity in climate across much of North America in the middle Eocene, and / or to the adaptability of these tiny primates.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFC67F3FFC4AF8CC14DA538C.taxon	type_taxon	Type species. Saskomomys lindsayorum, new species. Figure 10. Tables 2 and 3.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFC67F3FFC4AF8CC14DA538C.taxon	diagnosis	Diagnosis. Differs from Omomys in being smaller in occlusal area of all compared teeth and in the following: p 4 with indistinct metaconid, crest emitting from protoconid buccally oriented, linguallyseated paraconid, and short talonid that rises quite dorsally at its distal end; m 1 and m 2 narrower; m 3 broader, with more rounded cusps, with paraconid located centrally; M 1 less well-developed hypocone shelf; M 2 more convex mesial margin and deeper notch at distal margin; M 3 less triangular (i. e., more extensive hypocone shelf), relatively less extensive expansion of the base of the protocone lingually, lingual cingulum continuous or nearly so. Differs from Chumashius in having no distinct metaconid on p 4, crest running from protoconid runs buccally rather than distobuccally, less lingually projecting paraconid; m 1 and m 2 narrower, less well-developed buccal cingulid; m 3 hypoconulid lobe more isolated (i. e., constricted at its mesial end), trigonid longer at lingual side and more rounded mesially; M 2 narrower (especially at protocone), greater extent of hypocone, more distinct conules, more distinct buccal cingulum. Differs from Dyseolemur in having less basal inflation and crenulation on the lower molars and in lacking a metastylid and the fovea separating the metastylid from the metaconid; m 3 has more isolated hypoconulid lobe; M 1 and M 2 have smaller hypocone, conules, and buccal cingulum, with less-distinct crests emitting from the conules lingually; M 3 has less-distinct buccal cingulum and is more triangular in outline (narrower at protocone than at buccal cusps). Differs from Ekwiiyemakius in having a shorter and broader p 3 and m 3; more constriction mesial to the hypoconulid lobe on m 3; M 1 buccal notch is more pronounced (deeper and narrower); M 1 and M 2 trigon basin and hypocone shelf are broader; M 3 is longer (mesiodistal dimension).	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFC67F3FFC4AF8CC14DA538C.taxon	etymology	Etymology. Prefix ‘ Sask – ’ in reference to the distribution of the taxon in the province of Saskatchewan. Suffix ‘ – omomys ’ (Greek, “ shoulder-mouse ”) refers to omomyoid primates generally.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFC07F3FFEBAFAD915B152CC.taxon	materials_examined	Type. Right lower third molar collected by John Storer and crew, RSM P 1654.343 (Figure 9 A). Horizon and type locality. Interbedded conglomerate and coarse sandstone of Uintan middle Eocene age, Swift Current Creek locality, southwestern Saskatchewan, Canada (Russell, 1965 a, 1965 b, 1972; Storer, 1978, 1996).	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFC07F3FFEBAFAD915B152CC.taxon	diagnosis	Diagnosis. As for the genus.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
03B387CDFFC07F3FFEBAFAD915B152CC.taxon	etymology	Etymology. ‘ lindsayorum’ named for the Lindsay family of Saskatchewan (Brendan and Nadine) who graciously welcomed us to carry out fieldwork on their land where the fossiliferous beds of the Swift Current Creek site are located. Hypodigm. All material previously described as “ Omomyidae, sp. 1 ” from the Uintan Swift Current Creek locality: Rm 3, P 1654.343; Rm 3, P 1654.344. New material from the SCC locality: LM 1, RSM P 3450.1470; and RM 3, RSM P 3450.1471. All material previously described as “ Omomys sp. ” from the Duchesnean Lac Pelletier localities: LM 1, RSM P 1899.1011 (originally identified as M 2); LM 2, RSM P 1899.1010 (originally identified as M 1); LM 2, RSM P 1899.1012; RM 1 or M 2, RSM P 1899.1015; LM 3, RSM P 1899.1013; Lp 3, RSM P 1899.1017; Lp 4, RSM P 1899.1001; Rp 4, RSM P 1899.1018; Lm 1, RSM P 1899.1019; Lm 1, RSM P 1899.1020; Lm 1, RSM P 1899.1021 (originally identified as m 2); Lm 1, RSM P 1899.1024; Rm 1, RSM P 1899.1022; Lm 2, RSM P 1899.1023; Rm 2, RSM P 1899.1025; Rm 2 trigonid, RSM P 1899.1026 (originally identified as m 1 or m 2); Rm 2 trigonid, RSM P 1899.1027; Rm 2 trigonid, RSM P 1899.1028.	en	Perry, Jonathan M. G., Dutchak, Alex R., Theodor, Jessica M. (2023): New primates from the Eocene of Saskatchewan: Revision of the primates from the Cypress Hills Formation with description of new taxa. Palaeontologia Electronica (a 20) 26 (2): 1-19, DOI: 10.26879/1246, URL: http://dx.doi.org/10.26879/1246
