Piepgras and Stipp, 1977: 119

Samples that cite this reference

Lab number Site Province / State Normalized age δ13C (per mil)
SI-68 25RW28 (Doyle (Red Willow)) NE 1430 ± 45 -25.0
SI-72 25FT80 (Upper Republican) NE 440 ± 40 -25.0
UM-463 25FT80 (Upper Republican) NE 3670 ± 300 -8.0
UM-466 25RW28 (Doyle (Red Willow)) NE 1370 ± 100 -25.0
UM-467 25FT80 (Upper Republican) NE
UM-469 25RW28 (Doyle (Red Willow)) NE 5225 ± 130 -8.0
UM-470 25RW28 (Doyle (Red Willow)) NE 1940 ± 80 -25.0
UM-549 25RW28 (Doyle (Red Willow)) NE 1920 ± 70 -25.0