Where: Yukon, Canada (65.9° N, 136.2° W: paleocoordinates 39.7° N, 23.1° W)

• coordinate stated in text

• basin-level geographic resolution

When: Wolfcampian to Wolfcampian (298.9 - 273.0 Ma)

• The time interval given by the authors is Wolfcampian to ? early Leonardian. 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). It doesn't appear that the Lower Limestone unit and the Middle Recessive unit are formations or members and therefore the two units are treated as a bed/horizon.

Environment/lithology: marine; limestone and calcareous siltstone

Size class: macrofossils

Collection methods: Authors counted brachiopods only, but listed other taxa present. Fossils were collected from seven horizons in the Middle Recessive unit, 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 61569: authorized by Tom Olszewski, entered by Leigh Fall on 20.06.2006

Creative Commons license: CC BY (attribution)