| Title | Ediacaran remains from intertillite beds in northwestern Canada |
| Author | Hofmann, H J; Narbonne, G M; Aitken, J D |
| Source | Geology vol 18, no 12, 1990 p. 1199-1202, https://doi.org/10.1130/0091-7613(1990)018<1199:ERFIBI>2.3.CO;2 |
| Year | 1990 |
| Alt Series | Geological Survey of Canada, Contribution Series 41189 |
| Publisher | Geological Society of America |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 95J; 95K; 95L; 95M; 95N; 95O; 96B; 96C; 96D; 96E; 96F; 96G; 105I; 105J; 105K; 105N; 105O; 105P; 106A; 106B; 106C; 106F; 106G; 106H |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Lat/Long WENS | -134.0000 -122.0000 66.0000 62.0000 |
| Subjects | stratigraphy; sedimentology; fossils; turbidites; glaciation; glaciomarine deposits; tillites; diamictites; debris flows; sea level changes; Proterozoic; Precambrian |
| Illustrations | illustrations; location maps; stratigraphic columns; photographs |
| Abstract | A turbidite sequence within the Twitya Formation (Windermere Supergroup) in the Mackenzie Mountains, northwestern Canada, has yielded an assemblage composed of simple centimetric annuli and discs, which
are interpreted as biogenic and referred to Nimbia occlusa Fedonkin, Vendella? sp., and Irridinitus? sp. They occur below a glaciomarine diamictite about 2.5 km below the base of the Cambrian, and they may represent the oldest Ediacaran fossils now
known. The find has implications for models that relate the evolution of the Ediacara fauna to the waning of the Varanger glaciation. |
| GEOSCAN ID | 450 |
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