Renova Formation

Geology

Group: Ruby River Basin

Members: unnamed (12), Climbing Arrow (6), Dunbar Creek (4), Lower Cabbage Patch beds (1), Middle Cabbage Patch beds (1), Passamari (5), Upper Cabbage Patch beds (2)

Lithologies: not reported (3), claystone (1), mudstone (3), "shale" (4), sandstone (2)

Paleoenvironments: terrestrial indet. (21), fluvial indet. (1), lacustrine - large (1), pond (1), lacustrine indet. (5)

Age range: base of the Uintan to the top of the Oligocene or 46.20000 to 23.03000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Uintan46.2 - 39.7USA (Montana) (16532)
Duchesnean - Chadronian39.7 - 33.9USA (Montana) (16840)
Chadronian37.2 - 33.9USA (Montana) (16914 16915 16916 16935 16939 16959 16988 16997 17010 17041)
Orellan33.9 - 33.3USA (Montana) (17109 17154)
Early/Lower Oligocene33.9 - 28.4USA (Montana) (211242 211243 211244)
Oligocene33.9 - 23.03USA (Montana) (23793)
Whitneyan33.3 - 30.8USA (Montana) (21387 120622 120623 152195)
Arikareean29.5 - 18.5USA (Montana) (17540 17543 17700 183503 183504 183505)
Late/Upper Oligocene - Early/Lower Miocene28.4 - 15.97USA (Montana) (23330)
Harrisonian24.8 - 18.5USA (Montana) (17810)
Harrisonian - Hemingfordian24.8 - 15.97USA (Montana) (18811)