Also known as MVA(F)85-328

Where: British Columbia, Canada (49.4° N, 121.8° W: paleocoordinates 46.9° N, 68.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Buchia crassicollis other zone, Brokenback Hill Formation, Late/Upper Valanginian (140.2 - 136.4 Ma)

• Abundant fossils found in green sandstone and tuff of Brokenback Hill Formation. The Brokenback Hill Fm ranges from upper Valanginian to middle Albian in age. All colllections have relatively fine temporal resolution however due to ammonite biostratigraphy. SPECIFIC AGE DATA: Same as for GSC C-117401. Some part of Buchia crassicollis zone and upper Valanginian in terms of international standard stages (see Jeletzky, 1965). Contains Homolsomites quatsinoensis, which appears to be restricted to the lower part of the Buchia crassicolis zone (e.g. Jeletzky and Tipper, 1968).

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, tuffaceous, green sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the GSC

Collection methods: quarrying,

• Collections made in 1985by A.J. Arthur and P.L. Smith; collections reposited in the GSC.

Primary reference: A. J. Arthur, P. L. Smith, J. W. H. Monger and H. W. Tipper. 1993. Mesozoic stratigraphy and Jurassic paleontology west of Harrison Lake, southwestern British Columbia. Geological Survey of Canada Bulletin 441:1-62 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 57076: authorized by Austin Hendy, entered by Austin Hendy on 01.12.2005

Creative Commons license: CC BY (attribution)