| original |
Solvan |
|
Spain |
Fombella,M.A. Acritachs of the lower middle Cambrian from the Province of Leon, Spain. |
1977 |
| details |
Middle Cambrian |
|
Spain |
Fombella,M.A. Acritarchs of the Oville Formation, Middle Cambrian-Tremadocian age, Province of Leon, Spain. |
1978 |
| details |
Middle Cambrian |
|
Spain |
Fombella,M.A. Palynology of the Oville Formation, north and south Cantabrian Mountains. |
1978 |
| details |
Early Cambrian |
Middle Cambrian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Cambrian |
|
India(Uttar Pradesh) |
Saxena,R.K. Palynology of the pre-unconformity sequence of the subsurface sediments of Ganga and Punjab Basins of India |
1992 |