Where: British Columbia, Canada (54.4° N, 120.4° W: paleocoordinates 55.9° N, 63.8° W)

• coordinate based on nearby landmark

When: Commotion Formation, Early/Lower Cretaceous (145.5 - 99.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; silty shale

Size class: mesofossils

Preservation: adpression, original carbon

Collection methods: bulk,

• For further modifications, see Crabtree, D.R. 1987. Angiosperms of the Northern Rocky Mountains: Albian to Campanian (Cretaceous) Megafossil floras. Ann. Missouri Bot. Gard. 74: 707-747.

Primary reference: G.B. Mellon, J.H. Hall, and C.R. Stelck. 1963. Lower Cretaceous Section, Belcourt Ridge, Northeastern British Columbia. Bulletin of Canadian Petroleum Geology 11:64-72 [B. Tiffney/J. Fosdick/J. Fosdick] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 31272: authorized by Bruce Tiffney, entered by Julia Fosdick on 29.04.2003