Driftwood Canyon, site 1c: Ypresian, Canada
collected by W.L. Fry 1956
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Insecta
- Diptera
- Bibionidae
|
||||||||||
|
Plecia ? intermedia
(Scudder 1892)
|
1 specimen | |||||||||
| GSC 14425 | ||||||||||
|
? Penthetria fryi
Rice 1959
|
1 specimen | |||||||||
| GSC 14420 (1 measurement) | ||||||||||
|
Plecia curtula
(Handlirsch 1910)
|
1 specimen | |||||||||
| GSC 14430 (1 measurement) | ||||||||||
|
Plecia reducta
(Handlirsch 1910)
|
3 specimens | |||||||||
| GSC 14441, 14443, 14448 (2 measurements) | ||||||||||
|
Plecia avus
(Handlirsch 1910)
|
2 specimens | |||||||||
| GSC 14462, 14464 (2 measurements) | ||||||||||
|
Plecia canadensis
(Handlirsch 1910)
|
1 specimen | |||||||||
| GSC 14456 (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | British Columbia | County: | Smithers |
| Coordinates: | 54.8° North, 127.1° West (view map) | ||||
| Paleocoordinates: | 60.2° North, 108.9° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Ypresian | ||
| Age range of interval: | 56 - 47.8 m.y. ago | ||
| Age estimate: | 51.77 ± 0.34 Ma (Ar/Ar) |
Stratigraphy
| Geological group: | Ootsa Lake | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Okanagan Highlands localities traditionally considered middle Eocene (Lutetian) but more recently others have been shown to be early Eocene (Ypresian). U-Pb and Ar-Ar dates of Ootsa Lake Gp volcanics at other localities give age range of 53.2-47.6 Ma, spanning Ypresian and Lutetian, but position of Driftwood Canyon within that range is unknown. 51.77 ± 0.34 according to Archibald et al., 2014. | |||||
Lithology and environment
| Primary lithology: | lithified "shale" | ||
| Environment: | lacustrine indet. | Tectonic setting: | rift |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection methods: | survey of museum collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | W.L. Fry | Collection dates: | 1956 |
Metadata
| Database number: | 120981 | ||
| Authorizer: | M. Clapham | Enterer: | J. Karr |
| Modifier: | M. Clapham | Research group: | paleoentomology |
| Created: | 2011-11-24 17:05:54 | Last modified: | 2018-03-12 23:10:58 |
| Access level: | the public | Released: | 2011-11-24 17:05:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 38594. | H. M. A. Rice. 1959. Fossil Bibionidae (Diptera) from British Columbia. Geological Survey of Canada Bulletin 55:1-36 [M. Clapham/J. Karr/M. Clapham] |