Horsefly Mine, locality 8 (ROM collection): Ypresian, Canada
collected by Mark Wilson
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Arachnida
- Araneae
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Palaeoperenethis thaleri n. gen., n. sp.
Selden and Penney 2009
|
1 specimen | |||||||||
ROM 31304 | ||||||||||
see common names |
Geography
Country: | Canada | State/province: | British Columbia |
Coordinates: | 52.4° North, 121.4° West (view map) | ||
Paleocoordinates: | 57.2° North, 103.6° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
Key time interval: | Ypresian | ||
Age range of interval: | 56.00000 - 47.80000 m.y. ago |
Stratigraphy
Stratigraphic resolution: | group of beds |
Lithology and environment
Primary lithology: | lithified carbonaceous mudstone |
Includes fossils? | Y |
Lithology description: The spider is preserved in a dark, winter layer of varved lacustrine sediment. The varves consist of dark and light laminae; the former are composed of sapropel (organic matter) and represent winter accumulation of decayed plant material and clays. The light laminae were orginally interpreted as tuffaceous (Wilson 1977a) but they were later shown to be composed of diatom remains. | |
Environment: | lacustrine - large |
Taphonomy
Modes of preservation: | adpression |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | medium |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Museum repositories: | ROM |
Collectors: | Mark Wilson |
Metadata
Database number: | 34864 | ||
Authorizer: | D. Smith, M. Clapham | Enterer: | A. Kinchloe, M. Clapham |
Modifier: | M. Clapham | Research group: | paleoentomology |
Created: | 2003-10-08 10:27:48 | Last modified: | 2012-11-20 11:13:14 |
Access level: | the public | Released: | 2003-10-08 10:27:48 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
43570. | P. A. Selden and D. Penney. 2009. A fossil spider (Araneae: Pisauridae) of Eocene age from Horsefly, British Columbia, Canada. Contributions to Natural History 12:1269-1282 [M. Clapham/M. Clapham] |