| details |
Cretaceous |
|
Germany |
Lejeune-Carpentier,M. The microscopic study of Flint. An interesting preparation by Ehrenberg. (Fourth note.) |
1937 |
| details |
Aptian |
|
France(Paris Basin) |
Deflandre,G. Microfossils from Cretaceous Flints.Second Part |
1937 |
| details |
Late Cretaceous |
|
E.Germany(Potsdam) |
Deflandre,G. Microfossils from Cretaceous Flints.Second Part |
1937 |
| details |
Nd |
|
Nd |
Wetzel,O. Microfossils preserved in organic substances of the Baltic Cretaceous Flint. (Part 2.) |
1933 |
| details |
Nd |
|
E.Germany |
Ehrenberg,C.G. Microgeology. The soil and rockcreating activity of independent microscopic organisms. |
1854 |
| details |
Late Cretaceous |
|
England(London) |
Wilkinson,S.J. Observations on Xanthidium, both fossil and recent. |
1849 |
| details |
Late Cretaceous |
|
England(London) |
Wilkinson,S.J. Observations on Xanthidium, both fossil and recent. |
1849 |
| original |
Late Cretaceous |
|
England |
White,H.H. On fossil Xanthidia. |
1842 |
| original |
Late Cretaceous |
|
England |
White,H.H. On fossil Xanthidia. |
1842 |
| original |
Late Cretaceous |
|
England |
White,H.H. On fossil Xanthidia. |
1842 |
| original |
Late Cretaceous |
|
England |
White,H.H. On fossil Xanthidia. |
1842 |
| original |
Late Cretaceous |
|
England |
White,H.H. On fossil Xanthidia. |
1842 |
| original |
Late Cretaceous |
|
E.Germany(Potsdam) |
Ehrenberg,C.G. On the abundance of living silicious protozoa and a new protozoa conglomerate of Jastraba in Hungary. |
1838 |