Where: Yukon, Canada (67.5° N, 136.4° W: paleocoordinates 42.3° N, 22.5° W)
• coordinate stated in text
• basin-level geographic resolution
When: Tahkandit Formation, Leonard to Leonard (290.1 - 259.0 Ma)
• The time interval given by the authors is Leonardian and ? Guadalupian. The Permo-Pennsylvanian in the northern Yukon is ideally divided into three units called, in ascending order: Lower Limestone unit, Middle Recessive unit, and Tahkandit Formation (Nelson, 1961a, b, 1962b).
Environment/lithology: marine; sandstone and calcareous siltstone
Size class: macrofossils
Collection methods: Authors counted brachiopods only, but listed other taxa present. Fossils were collected from five horizons in the Tahkandit Formation, but the horizons are not labeled in Text-Fig. 2 or listed elsewhere in the article.
Primary reference: S. J. Nelson and C. E. Johnson. 1968. Permo-Pennsylvanian brachythyrid and horridonid brachiopods from the Yukon Territory, Canada. Journal of Paleontology 42(3):715-746 [T. Olszewski/L. Fall] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 61635: authorized by Tom Olszewski, entered by Leigh Fall on 21.06.2006