Where: Northwest Territories, Canada (79.6° N, 84.8° W: paleocoordinates 56.3° N, 26.4° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Fosheim Member (Heiberg Formation), Norian to Norian (228.0 - 183.0 Ma)
• 76m below the top of the Fosheim Member
• group of beds-level stratigraphic resolution
Environment/lithology: delta plain; lithified, gray sandstone
Size class: macrofossils
Preservation: mold/impression
Collection methods: quarrying, surface (in situ), mechanical
• Locality USPC70. Collected by S.R. Ash and H.O. Ash, 1985
Primary reference: S. R. Ash and J. F. Basinger. 1991. A high latitude Upper Triassic flora from the Heiberg Formation, Sverdrup Basin, Arctic Archipelago. Contributions to Canadian Paleontology, Geological Survey of Canada, Bulletin 412:101-131 [A. Rees/D. Sunderlin/D. Sunderlin]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 23977: authorized by Allister Rees, entered by Dave Sunderlin on 25.07.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Cycadopsida | |
Taeniopteris tenuinervis cycads
Anthrophyopsis sp. Nathorst 1878 cycads | |
Pelourdea sp. Seward 1917 | |
Ginkgoopsida | |
Ginkgo siberica ginkgo | |
Sphenobaiera spectabilis Nathorst 1936 | |
Podozamites sp. Braun 1843 podocarp | |
Polypodiopsida | |
Cladophlebis sp. Brongniart 1849 | |
Neocalamites hoerensis Schimper 1908 |