Where: Washington (48.7° N, 118.7° W: paleocoordinates 54.4° N, 101.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tom Thumb Member (Klondike Mountain Formation), Ypresian (55.8 - 48.6 Ma)

• "late Ypresian"

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, brown mudstone

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Collected by Nils Larsen

Primary reference: S. B. Archibald, S. P. Cover, and C. S. Moreau. 2006. Bulldog Ants of the Eocene Okanagan Highlands and History of the Subfamily (Hymenoptera: Formicidae: Myrmeciinae). Annals of the Entomological Society of America 99(3):487-523 [M. Clapham/J. Karr] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119947: authorized by Matthew Clapham, entered by Jered Karr on 05.11.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)