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Canada / AB / EbPp-? (January Cave) / QL-1738
- Lab number
- QL-1738
- Material dated
- rodent bone collagen; collagène osseux de rongeur
- Taxa dated
- Rodentia
- Locality
- in the Front Ranges of the Rocky Mountains, 2040 m asl, 80 km southwest of Calgary, Livingstone River, Oldman drainage, Alberta
- Map sheet
- 82 J/02
- Submitter
- J.A. Burns
- Date submitted
- June 18, 0098
- Normalized Age
- 31900 ± 1400
- Significance
- palaeobiology; paléobiologie
- Stratigraphic component
- Level 7
- Context
- level 7, northeast extension
- Associated taxa
- Mammalia: Sorex cinereus 1, Ochotona princeps 209, Lepus americanus cf. 12, Marmota caligata 67, Spermophilus columbianus 143, Spermophilus lateralis 6, Cynomys niobrarius churcherii cf. 1, Thomomys talpoides 11, Peromyscus maniculatus 284, Neotoma cinerea 76, Lemmus sibiricus 10, Dicrostonyx torquatus 51, Lemmiscus curtatus 2, Microtus longicaudus cf. 292, Muridae 130, Myomorpha 1, Rodentia 3, Carnivora 2
- Comments
- January Cave, EbPp-VP: This cave in Mississippian limestone is situated 102 m above the valley of Dry Creek, a tributary of Livingstone River. The cave sediments consist of limestone fragments in a fine-grained matrix containing particles ranging in size from cobbles to clay. These were excavated in arbitrary 10-cm levels with Unit NE reaching as deep as Level 10, the Unit NE-extension going as deep as Level 16, and Unit SE extending into Level 20. Three radiocarbon dates were obtained, along with four thermoluminescence dates. Burns (1991: 133) rejects the TL dates, because they are stratigraphically inconsistent, too variable, and were based on samples not specifically collected for TL analysis. One radiocarbon sample, GaK-5438, a composite sample drawn from Levels 13-16 in the Unit NE-extension, is also considered too young. This leaves only two radiocarbon dates, both from the QL- laboratory and both falling within the mid-Wisconsinan interstadial, as the only chronological controls on the 20 excavated levels. The faunal data presented here combines the original frequencies above, between, and below these two samples, with the dated levels listed separately. Presumably the entire sequence represents the mid-Wisconsinan interstadial, although the younger levels may represent an early portion of the late Wisconsinan period of glacial advance. Most of the faunal remains are believed to have been introduced to the cave by raptorial birds that regurgitated bone-rich pellets and by mammalian carnivores, but some of the artiodactyls may have entered the cave on their own, only to die while sheltering there. Fauna: Odocoileus hemionus cf 1, Artiodactyla 3