Horsefly Mine: Ypresian, Canada
collected by Lawrence M. Lambe 1906

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Mallomonas intermedia
Siver et al. 2019
Bacillariophyceae - Aulacoseirales - Aulacoseiraceae
Eoseira wilsonii n. gen., n. sp. Wolfe and Edlund 2005
Wolfe and Edlund 2005
From the H2 sequence
Insecta - Coleoptera
Coleoptera indet. Linnaeus 1758
1 specimen
Collected July 20
Insecta - Orthoptera - Promastacidae
Promastox archaicus n. gen., n. sp. Handlirsch 1910
1 specimen
Collected July 20 (1 measurement)
Insecta - Diptera - Bibionidae
Penthetria dilatata n. sp. Handlirsch 1910
1 specimen
recombined as Plecia dilatata
Collected July 20 (1 measurement)
Penthetria platyptera n. sp. Handlirsch 1910
1 specimen
recombined as Plecia platyptera
Collected July 20 (1 measurement)
Penthetria angustipennis n. sp. Handlirsch 1910
1 specimen
recombined as Plecia angustipennis
Collected July 20 (1 measurement)
Penthetria reducta n. sp. Handlirsch 1910
2 specimens
recombined as Plecia reducta
Collected July 20 (1 measurement)
Plecia transitoria (Handlirsch 1910)
Rice 1959 1 specimen
GSC 14470 (1 measurement)
Penthetria fragmentum n. sp. Handlirsch 1910
1 specimen
synonym of Plecia transitoria
Collected July 20; GSC 7260 (1 measurement)
Penthetria curtula n. sp. Handlirsch 1910
1 specimen
recombined as Plecia curtula
Collected July 20 (1 measurement)
Actinopteri - Hiodontiformes - Hiodontidae
Eohiodon woodruffi Wilson 1978
Wilson 1978 2 specimens
see common names

Geography
Country:Canada State/province:British Columbia
Coordinates: 52.4° North, 121.4° West (view map)
Paleocoordinates:57.1° 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
Lithology and environment
Primary lithology:planar lamination "shale"
Lithology description: Varved shale, with alternating Dark sapropel laminae & Light tuff laminae
Environment:lacustrine indet. Tectonic setting:rift
Geology comments: It is proposed here Ihat the varves were deposited in the deeper regons of a stratified, monomictic or meromictic lake in a warm temperate climate
Taphonomy
Modes of preservation:mold/impression,adpression
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:Lawrence M. Lambe Collection dates:1906
Collection method comments: "In the year 1906, during geological explorations in the southern interior of British Columbia, Mr. lawrence M. Lambe, of the Geological Survey, collected a number of remains of Tertiary insects..."
Metadata
Also known as:H1
Database number:119857
Authorizer:M. Clapham, K. Volkman, P. Holroyd Enterer:J. Karr, P. Holroyd, K. Volkman
Modifier:J. Karr Research group:paleoentomology
Created:2011-11-02 20:10:30 Last modified:2014-08-06 17:34:25
Access level:the public Released:2011-11-02 20:10:30
Creative Commons license:CC BY
Reference information

Primary reference:

38404. A. Handlirsch. 1910. Canadian fossil Insects. 5. Insects from the Tertiary lake deposits of the southern interior of British Columbia, collected by Mr. Lawrence M. Lambe. Contributions to Canadian Palaeontology 2(3):93-129 [M. Clapham/J. Karr]

Secondary references:

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]
83417 P. A. Siver, A. Skogstad, and Y. Nemcova. 2019. Endemism, palaeoendemism and migration: the case for the 'European endemic', Mallomonas intermedia. European Journal of Phycology 54(2):222-234 [K. Volkman/K. Volkman]
63863 M. V. H. Wilson. 1978. Eohiodon woodruffi n. sp. (Teleostei, Hiodontidae), from the middle Eocene Klondike Mountain Formation near Republic, Washington. Canadian Journal of Earth Sciences 15(5):679-686 [P. Holroyd/P. Holroyd]
83414 A. P. Wolfe and M. B. Edlund. 2005. Taxonomy, phylogeny, and paleoecology of Eoseira wilsonii gen. et sp. nov., a Middle Eocene diatom (Bacillariophyceae: Aulacoseiraceae) from lake sediments at Horsefly, British Columbia, Canada. Canadian Journal of Earth Sciences 42(2):243-257 [K. Volkman/K. Volkman]