We studied fossils of late Pleistocene vertebrates that were excavated in 1940 from a small rockshelter in Cimarron County, Oklahoma. The assemblage consists of a Canada goose (Branta canadensis) and 14 mammals. Most of the mammals are large or medium-sized indicating a bias in the method of collecting. The assemblage includes Branta canadensis, Mammuthus cf. M. columbi, Cynomys, Neotoma, Lepus, Sylvilagus, Vulpes velox, Canis latrans, Canis lupus, cf. Lynx, Equus cf. conversidens, Equus cf. niobrarensis, Camelops hesternus, Antilocapridae, and Bison. Noteworthy among these is one of the few available late Pleistocene records of the swift fox, Vulpes velox. A piece of enamel from the mammoth at the locality yielded a radiocarbon age of 23,980 ± 130 years before present.