Where: Washington (47.6° N, 117.4° W: paleocoordinates 48.4° N, 114.2° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Latah Formation, Langhian (16.0 - 13.8 Ma)
• Latah Formation overlies the Grande Ronde basalts (16-15.5 Ma; Barry et al., 2013), although younger parts of the Grande Ronde are absent at some localiies (Nash & Perkins, 2012). It underlies the Saddle Mountain basalts (c. 15 Ma and younger; Barry et al., 2013). Ash beds within the Latah Formation at White Bird, Idaho, are dated to 15.77 Ma (Mascall Tuff), 15.66 Ma (Bully Creek tuff), and an interpolated age of 14.3 Ma (Nash & Perkins, 2012).
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine - small; lithified mudstone
Size class: macrofossils
Preservation: mold/impression
Collected by T.A. Bonser, C.O. Fernquist, E.E. Alexander in 1927; reposited in the MCZ
Primary reference: F. M. Carpenter, T. D. A. Cockerell, C.H. Kennedy, T. E. Snyder, and H. F. Wickham. 1931. Insects from the Miocene (Latah) of Washington. Annals of the Entomological Society of America 24:307-322 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 140652: authorized by Matthew Clapham, entered by Jered Karr on 14.03.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
"Stylotermes washingtonensis n. sp." = Parastylotermes washingtonensis
| |
Bombus proavus n. sp.
| |
Formicidae indet. Latreille 1802 ant | |
Miopsyche alexanderi n. gen. n. sp., Miopsyche martynovi n. sp.
| |
Phryganea spokanensis n. sp.
| |
Dytiscus latahensis n. sp.
| |
Miocordulia latipennis n. gen. n. sp.
|