| details |
Late Jurassic |
|
England(Yorkshire) |
Sarjeant,W.A.S. Microplankton from the Cornbrash of Yorkshire. |
1959 |
| details |
Frasnian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgian Devonian (Drilling at the Asylum for the Demented at Tournai). |
1960 |
| details |
Oxfordian |
|
England(Yorkshire) |
Sarjeant,W.A.S. Microplankton from the Corallian rocks of Yorkshire. |
1960 |
| details |
Early Callovian |
Early Oxfordian |
England(Yorkshire) |
Sarjeant,W.A.S. Microplankton from the Kellaways rock and Oxford Clay of Yorkshire |
1961 |
| details |
Tournaisian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgium Devonian (Drilling at the Asylum for the demented at Tournai). |
1962 |
| details |
Oxfordian |
|
England(Yorkshire) |
Sarjeant,W.A.S. Microplankton from the Ampthill Clay of Melton, South Yorkshire |
1962 |
| details |
Tarannon |
|
Belgium |
Stockmans,F. et al. The Hystrichospheres or rather the acritarchs of the Belgian Silurian. Drilling at the Lust Brewery at Courtrai (Kortrijk). |
1962 |
| details |
Silurian |
Devonian |
Belgium |
Stockmans,F. et al. The Hystrichospheres or rather the acritarchs of the Belgian Silurian. Drilling at the Lust Brewery at Courtrai (Kortrijk). |
1962 |
| details |
Frasnian |
|
Belgium |
Stockmans,F. et al. Hystrichospheres of the Belgian Devonian (Wepion Drilling). |
1962 |
| details |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| original |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| original |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| original |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| original |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| original |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| details |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |
| original |
Early Permian |
|
United Kingdom |
Wall,D. et al. Permian Hystrichospheres from Britain. |
1963 |