Where: Yukon, Canada (67.1° N, 135.7° W: paleocoordinates 67.7° N, 67.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: North Branch Formation, Berriasian (145.0 - 139.8 Ma)
• Collection from the "North Branch Formation" unit of the Vittrekwa River section. This succession is assigned a Berresian age based on macrofossil biostratigraphy (Buchia okensis biozone of Jeletzky, 1958). Overlies conformably lower Tithonian age North Branch Formation of the Buchia mosquensis biozone.
• bed-level stratigraphic resolution
Environment/lithology: foreshore; lithified, pebbly, conglomeratic sandstone
Size class: macrofossils
Reposited in the GSC
Collection methods: quarrying,
• Collection is a composite derived from Fig. 2 of Jeletzky (1978), and amalgamated from occurrences of individual taxa on composite columns for individual lithostratigraphic units. Collections presumably are reposited in the Geological Survey of Canada collections.
Primary reference: J. A. Jeletzky. 1975. Jurassic and Lower Cretaceous paleogeographgy and depositional tectonics of Porcupine Plateau. adjacent areas of Northern Yukon and those of MacKensie District. Geological Survey of Canada, Paper 74(16):1-52 [A. Miller/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 55976: authorized by Austin Hendy, entered by Austin Hendy on 09.11.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Buchia okensis Pavlow 1907 scallop |