Where: British Columbia, Canada (50.1° N, 120.5° W: paleocoordinates 54.8° N, 103.5° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Coldwater Beds Formation, Ypresian (56.0 - 47.8 Ma)
• U-Pb dating of thick tephra combined with Ar-Ar dates of sanidine from same bed. Tephra deposited within insect-bearing shales.
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine - large; lithified, tuffaceous, brown mudstone
Size classes: macrofossils, mesofossils
Preservation: mold/impression, adpression
Collected by Lawrence M. Lambe in 1906
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 119896: authorized by Matthew Clapham, entered by Jered Karr on 04.11.2011, edited by Mark Uhen and Karl Volkman
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
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Aves | |
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Insecta | |
"Gerris defuncta n. sp." = Telmatrechus defunctus
"Gerris defuncta n. sp." = Telmatrechus defunctus Handlirsch 1910 water strider Collected by July 31
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"Penthetria ? pictipennis" = Plecia pictipennis
"Penthetria ? pictipennis" = Plecia pictipennis Handlirsch 1910 love bug Collected by July 31; GSC 7256
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