| details |
Late Pliocene |
|
Alabama |
Kirchheimer,F. Pollen content of the U. Pliocene Browncoal of the Lower main area. |
1935 |
| details |
Late Pliocene |
|
Mississippi |
Kirchheimer,F. Pollen content of the U. Pliocene Browncoal of the Lower main area. |
1935 |
| details |
Cretaceous |
|
Nd |
Deflandre,G. The presence of Conifer, (Abietineae), pollen in Flint in the Chalk. The pollen accumulation of the Cretaceous Epoque. |
1934 |
| details |
Miocene |
|
Germany |
Kirchheimer,F. On the preparation of slides for the contrast reproduction of fossil pollen. |
1933 |
| details |
Late Pliocene |
|
W.Germany(Hesse) |
Kirchheimer,F. On the Wetterau main Browncoal Seam |
1933 |
| 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 |