j j ISSN 0097-4463 i ' 0/ CARNEGIE MUSEUM : CARNEGIE MUSEUM OF NATURAL HISTORY 4400 FORBES AVENUE * PITTSBURGH, PENNSYLVANIA 15213 VOLUME 47 1 SEPTEMBER 1978 ARTICLE 15 ! PALEONTOLOGY AND GEOLOGY OF THE BADWATER CREEK AREA, CENTRAL WYOMING, PART 15. REVIEW OF THE LATE EOCENE PRIMATES FROM ' WYOMING AND UTAH, AND THE PLESITARSIIFORMES Leonard Krishtalka : Assistant Curator, Section of Vertebrate Fossils i Abstract New primate material from the late Eocene of Bad water allows documentation of the occurrence and systematics of seven species as follows: Phenacolemur mcgrewi; P. shifrae (new); Trogolemur sp.; Macrotarsius siegerti; Chumashius sp.; Uintasorex sp. cf. U. parvulm; Mytonius hopsoni. Ourayia, from the Uintan of Utah, is more strictly defined with part of the hypodigm referred to Macrotarsius jepseni (new combination). The alleged microsyopid affinities of uintasoridnes and some paromomyids are reviewed and not accepted. The relationships among plesiadapiform-tarsiiform. primates are re- vised in accordance with inferred shared-derived similarities, and two major clades are recognized— all Plesiadapiformes (Plesiadapidae, Paromomyidae, Microchoeridae, and I Anaptomorphidae) share the derived protocone fold on the upper molars; all Tarsi- ; iforrnes (Omomyidae: Omomyinae, Uintasoricinae) are united in having continuous and I parabolic protocristae on the upper molars enclosing a broad, shallow trigon basin. Introduction Since the last review of the late Eocene primates from the Badwater Creek area (Robinson, 1968), continued collecting from the Uintan (localities 5, 5A, 5 Front, 5 Back, Wood, 6) and Duchesnean (locality 20) deposits has yielded additional dental remains referrable to new !' and previously described taxa. It is clear that the Badwater sediments ' are not part of the Tepee Trail Formation (Krishtalka and Black, 1975; I West et ah, manuscript) although their formational status has not yet been determined. I Robinson (1968) described seven species of primates from Badwa- I ter— one as a paromomyid (Phenacolemur mcgrewi), four as omo- myids (Macrotarsius siegerti, IHemiacodon sp., IChumashius sp., Submitted for publication 4 April 1978. 335