Where: Washington (47.7° 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
Primary reference: S. E. Lewis. 1969. Fossil insects of the Latah Formation (Miocene) of eastern Washington and northern Idaho. Northwest Science 43:99-115 [M. Clapham/M. Clapham/R. Day]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 97619: authorized by Matthew Clapham, entered by Matthew Clapham on 13.08.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
| Insecta | |
Tipula latahensis n. sp.
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Bibio sp. Geoffroy 1762 march fly | |
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Latahcoris spectatus n. gen. n. sp.2
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Hymenarcys cridlandi n. sp.
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Periope ivesi n. sp.
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? Dascillus latahensis n. sp.3
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Folindusia miocenica n. sp.1
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