| details |
Middle Eocene |
|
Colorado |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Triassic |
Pannonian |
Hungary |
Tomor,J. Results of the genesis and age determination of Hungarian oils |
1964 |
| details |
Paleocene |
|
India(Maharashtra) |
Barlinge,S.G. et al. Fossil microflora of a new locality from Nanded District, Maharashtra. |
1980 |
| details |
Tertiary |
|
India(Madhya Pradesh) |
Paradkar,S.A. et al. Addition to the microflora of Deccan Inter-Trappean Beds of Mohgaon-Kala. |
1980 |
| details |
Eocene |
|
India(Rajasthan) |
Tripathi,R.P. et al. Plant microfossils from the lignite deposites (Eocene) of Barsinghsar in Bikaner District, Rajasthan, India. |
1999 |