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
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]