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Lab number
RIDDL-732
Material dated
mammoth? bone collagen; collagène osseux de mammouth
Taxa dated
Mammuthus? sp. femur (MlVl-2:147)
Locality
right bank of Old Crow River, Old Crow Basin, Porcupine drainage, northern Yukon Territory
Map sheet
116 O/13
Submitter
R.E. Morlan
Date submitted
May 1, 0097
Normalized Age
42100
δ13C (per mil)
-20.0
Significance
geochronology, palaeobiology; géochronologie, paléobiologie
Context
alluvium, middle of Unit 2a, 10 m below Disconformity A
Associated taxa
Mammalia: Ochotona sp, Lepus arcticus, Spermophilus parryii, Castor canadensis, Lemmus sibiricus, Ondatra zibethicus, Dicrostonyx sp, Canis lupus cf., Vulpes or Alopex, Ursus americanus cf., Mammuthus sp, Equus sp, Rangifer tarandus; Aves, Anatidae, cf. Lagopus sp; Pisces, Stenodus leucichthys, Catostomus catostomus, Lota lota
Additional information
AMS date. Collagen extraction method 3, >30kD; this date should be considered a minimum age.
Comments
MlVl-2, Old Crow River Locality CRH-15: This is one of the few Pleistocene localities in eastern Beringia that has produced multiple vertebrate assemblages in stratigraphic sequence. It has also produced possible evidence of human activity on bones from an erosional contact known as Disconformity A. Of nine radiocarbon dates from CRH-15, the six dates on bone collagen are included in this database. Three of the bones are considered to be possible artifacts because of their fresh-state fractures and well preserved impact scars.

References