Also known as ETE Locality 1566, Badger Creek
Where: Glacier County, Montana (48.5° N, 112.7° W: paleocoordinates 56.1° N, 78.0° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Two Medicine Formation (Montana Group), Campanian (83.6 - 72.1 Ma)
• ETE dating method: time_unit, ETE age comment: 0 radiometric intage_min
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•Foreman et al. 2008: 40Ar/39Ar radioisotopic age data reported for the Two Medicine Formation (Rogers et al., 1993; present study) are consistent with the unit accumulating during most of the Campanian Stage (83.5–70.6 Ma, Gradstein et al., 2004), with deposition definitively commencing prior to 80 Ma and terminating shortly after 74 Ma.
• bed-level stratigraphic resolution
Environment/lithology: fluvial; silty mudstone
Size class: macrofossils
Collection methods: quarrying, mechanical,
• ETE reference list: 478, 479, 480, 482, 485, 483, 454
Primary reference: D. J. Varricchio. 1993. Taphonomy of Jack's Birthday site, a diverse dinosaur bone bed. Journal of Vertebrate Paleontology 13(3, suppl.):61A [A. Behrensmeyer/A. Behrensmeyer/M. Carrano]more details
Purpose of describing collection: taphonomic analysis
PaleoDB collection 22691: authorized by Anna Behrensmeyer, entered by Anna Behrensmeyer on 29.05.2001, edited by Matthew Carrano and Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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Crocodylia indet. crocodilian | |
Theropoda indet. theropod | |
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Champsosaurus sp. Cope 1876 choristodere |