| details |
Tremadocian |
|
Czechoslovakia |
Richardson,J.B. Paleozoic spores and pollen: Lower and Middle Palaeozoic record of terrestrial palynomorphs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Tremadocian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| original |
Early Tremadocian |
|
Algeria |
Combaz,A. A microbiota of the Tremadocian in a drilling of Hassi-Messaoud. |
1967 |
| original |
Tremadocian |
|
Algeria |
Combaz,A. On a microbiota of Tremadocian age at Hassi-Messaoud. |
1967 |