CARD fuzzes location data for public visitors to the database. Accessing CARD's full capabilities requires an account available only to researchers at accredited institutions.
Canada / AB / DjPo-47 (Maple Leaf) / RL-873
- Lab number
- RL-873
- Material dated
- bison bone collagen; collagène osseux de bison
- Taxa dated
- Bison sp.
- Locality
- on a bedrock terrace along the north bank of Crowsnest River, within the Livingstone Range, Crowsnest Pass, Alberta
- Map sheet
- 82 G/09
- Submitter
- A.J. Landals
- Date submitted
- March 6, 0097
- Measured Age
- 8550 ± 270
- Normalized Age
- 8630 ± 270
- δ13C (per mil)
- -20.0
- Significance
- Palaeoindian; Paléoindien
- Stratigraphic component
- Component 1
- Context
- component 1, at interface of clay and underlying boulder pavement, Ptolemy subphase
- Associated taxa
- Mammalia: Canis sp 1, Ovis canadensis 3, Bison bison 3
- Additional information
- It is assumed that this date was not corrected previously for isotopic fractionation.
- Comments
- DjPo-47, Maple Leaf: This is the type site of Driver's (1978) Mapleleaf subphase. Landals (1986) describes three components in her detailed zooarchaeological study. Component 1 belongs to the late Palaeoindian period based on a projectile point that may be a variant of the Pryor stemmed type as well as a radiocarbon date (RL-873). It occurs in a clay layer above cobbles and below marl. Component 2 is in the marl, just below Mazama tephra, and it yielded an Elko Eared point and one radiocarbon date (RL-876). Component 3, in clay just above the Mazama tephra, has a confusing excavation history and had apparently been disturbed by a borrow pit. It yielded seven Bitterroot/Salmon River points, two Oxbow points, and one unclassified point. Of three dates on component 3, GX-6384A was closely associated with one of the Oxbow points. Driver (1987: 354) states that RL-877 was associated with an Oxbow point, and he assigns RL-508 to a post-Mazama Mummy Cave bison kill. An additional date, RL-872, is ascribed to the Hanna complex by Brumley and Rushworth (1983: 150) who cite a personal communication from B.O.K. Reeves.