. The Canadian field-naturalist. 1993 Youngman: Pleistocene Small Carnivores 141 tary from Old Crow River, Loc. (=Locality see Appendix II) 14N, Yukon Territory (NMC 14353) as Cuon sp. Kurten and Anderson (1980) referred both specimens to tlie extant Dhole {Cuon alpinus). Other North American records of Cuon sp. include seven specimens from San Josecito Cave, Nuevo Leon, Mexico, of Wisconsinan age (LACM 10984, 28081- 86). Canis texanus from the early Irvingtonian of Rock Creek, Texas (Troxell 1915), described on the basis of a large dentary, was referred to Cuon sp. by Berta (1988) based on un
. The Canadian field-naturalist. 1993 Youngman: Pleistocene Small Carnivores 141 tary from Old Crow River, Loc. (=Locality see Appendix II) 14N, Yukon Territory (NMC 14353) as Cuon sp. Kurten and Anderson (1980) referred both specimens to tlie extant Dhole {Cuon alpinus). Other North American records of Cuon sp. include seven specimens from San Josecito Cave, Nuevo Leon, Mexico, of Wisconsinan age (LACM 10984, 28081- 86). Canis texanus from the early Irvingtonian of Rock Creek, Texas (Troxell 1915), described on the basis of a large dentary, was referred to Cuon sp. by Berta (1988) based on unspecified unpubUshed data. The talonid of ml of this specimen is trenchant, in that respect resembling the genus Cuon, but this character has appeared independently in a number of canids (Van Valkenburgh 1991). The dentary is that of a bone-crusher, rather than a hypercarnivore; Canis texanus probably should not be referred to the genus Cuon. The Cripple Creek Sump specimen is a partial right dentary (Figure 2) with p4-m2 and the alveoli of il-p3 and m3. The ml is fractured and incom- plete. The entoconid is greatly reduced; the hypoconid is well developed; a small metaconid is present, and the talonid basin is relatively deep. A small metastylid is present as well as a small ento- conulid. In occlusal view the outline of the talonid is less square than in specimens of wolf-like canids {Canis lupus, Canis latrans and domestic dog). The m2 is ovoid, double-rooted and the occlusal surface is relatively long (47% of the length of ml). The crown has a distinct trigonid-talonid. The metaconid is small and not widely separated from the proto- conid. This tooth is more lupoid than those seen in any modern or fossil specimens of Cuon from Europe and Asia. The alveolus for m3 (with broken root) is relatively small. The large size of the jaw, the presence of a dou- ble-rooted m2, and the presence of an m3 suggests that the Alaskan specimen may be more closely related to Cuon dubius from
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