Ruby River, between Peterson and Morman Creeks (Oligocene of the United States)

Also known as Ruby River near Alder

Where: Madison County, Montana (45.2° N, 112.2° W: paleocoordinates 46.6° N, 104.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Passamari Member (Renova Formation), Whitneyan (33.3 - 30.8 Ma)

• Whitneyan North American land mammal age according to Wing, 1987.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; shale

Size class: mesofossils

Preservation: adpression

Collected by H. F. Becker, John Alley

• Repository: St. Cloud State University (ultimately intended to be AMNH)

Primary reference: S. E. Lewis. 1973. Two new species of fossil crane flies (Diptera: Tipulidae) from the Ruby River Basin (Oligocene) of Southwestern Montana. Annals of the Entomological Society of America 66(3):706-707 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120623: authorized by Matthew Clapham, entered by Jered Karr on 18.11.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

 Blattodea - Kalotermitidae
Prokalotermes alderensis n. sp.9 Lewis 1977 termite
 Blattodea -
Ulmeriella rubiensis n. sp.4 Lewis 1973 termite
 Orthoptera - Locustopsidae
? Zeunerella lewisi n. sp.1 Kevan and Wighton 1981 grasshopper
B-6, B-41, B-81
 Orthoptera - Eruciidae
? Erucius lewisi n. sp.1 Kevan and Wighton 1981 grasshopper
B-1 (found by H.F. Becker)
 Diptera - Bombyliidae
Phthiria fossa n. sp.7 Lewis 1975 bee fly
Alepidophora maxima n. sp.3 Lewis 1972 bee fly
B. 141b (found by H.F. Becker)
 Diptera - Syrphidae
Tropidia tumulata n. sp.5 Lewis 1973 hover fly
 Diptera - Asilidae
Asilidae indet.2 Latreille 1802 robber fly
fragment of a wing
Senoprosopis beckeri n. sp.2 Lewis 1972 robber fly
B. 4a
? Dioctria jamesi n. sp.2 Lewis 1972 robber fly
B. 134
 Diptera - Anisopodidae
aff. Sylvicola fenestralis10 Scopoli 1763 wood gnat
 Diptera - Bibionidae
Bibionidae indet.10 Newman 1834 march fly
RR-1-54, B-24, 117
aff. Penthetria sp.10 Meigen 1803 march fly
aff. Plecia sp.10 Wiedemann 1823 love bug
RR-1-25, B-25, 44, 102, 111, 144
aff. Bibio sp.10 Geoffroy 1762 march fly
 Diptera - Hesperinidae
aff. Hesperinus sp.10 Walker 1848 unicorn fly
RR-1-44, B-11, 15, 50, 63, 68, 110, 119, 142
 Diptera - Mycetophilidae
Mycetophilidae indet.10 Newman 1835 fungus gnat
RR-1-11, 39
aff. Exechia sp.10 Winnertz 1863 fungus gnat
 Diptera - Tipulidae
Tipulidae indet.10 Latreille 1802 crane fly
Tipula carolae n. sp. Lewis 1973 crane fly
Tipula rubiensis n. sp. Lewis 1973 crane fly
aff. Tipula rubiensis10 Lewis 1973 crane fly
RR-1-2, B-74, 75 (complete insects)
 Trichoptera - Limnephilidae
? Miopsyche rubiensis n. sp.6 Lewis 1973 caddisfly
B-136, B-130, B-137, 6-38
 Ephemeroptera - Neoephemeridae
Potamanthellus rubiensis n. sp.8 Lewis 1977 mayfly
B-60, B-13, B-20, B-58, B-59, B-61, B-62, C-1, C-2, RR-1-34, RR-4-1, 6-40, 6-117, 6-23, 6-290
 Ephemeroptera - Isonychiidae
Isonychia alderensis n. sp.8 Lewis 1977 mayfly