| details |
Late Proterozoic |
|
Mali |
Boureau,E. Characteristics and evolution of certain terminal Precambrian organisms of West Africa. |
1977 |
| details |
Late Proterozoic |
|
Mauritania |
Boureau,E. Characteristics and evolution of certain terminal Precambrian organisms of West Africa. |
1977 |
| details |
Devonian |
|
Ohio |
Locquin,M.V. Diagenetic remnants of Parietal Mucilage of megaspheroides of the Babetosphaera and Polysphaerula-Type from the Silurian and Devonian. |
1979 |
| details |
Silurian |
|
W.Germany(Bavaria) |
Locquin,M.V. Diagenetic remnants of Parietal Mucilage of megaspheroides of the Babetosphaera and Polysphaerula-Type from the Silurian and Devonian. |
1979 |