Where: Yukon, Canada (65.9° N, 136.2° W: paleocoordinates 41.1° N, 23.4° W)
• coordinate stated in text
• basin-level geographic resolution
When: Tahkandit Formation, Leonardian to Leonardian (286.0 - 259.5 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; calcareous siltstone and limestone
Size class: macrofossils
Collection methods: Authors counted brachiopods only, but listed other taxa present. Fossils were collected from four 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 61570: authorized by Tom Olszewski, entered by Leigh Fall on 20.06.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
"Muirwoodia greenlandica" = Yakovlevia greenlandica, "Horridonia bullocki n. sp." = Bruntonia bullocki
"Muirwoodia greenlandica" = Yakovlevia greenlandica Dunbar 1955 | |
Rhynchonellata | |
"Spiriferella ordinaria" = Alispiriferella ordinaria, Spiriferella rajah
|