| details |
Late Llandoverian |
Early Homerian |
Sweden |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
| details |
Middle Gothlandian |
|
New York |
Le H©riss©,A. Acritarchs and cysts of Prasinophycean algae of the Silurian of Gotland, Sweden. |
1989 |
| details |
Early Ludlovian |
Middle Ludlovian |
Argentina(San Juan) |
Rubinstein,C.V. Acritarch from the Silurian of the Jachal River Valley (Los Esp Formation), San Juan Province, Republica Argentina Subgroups Herkumorphita, Netromorphitae and Polgonomorphitae |
1989 |
| details |
Emsian |
|
Morocco |
Rahmani-Antari,K. Palynological study and evaluation of the Thermal Alteration Index, (TAI), of the Paleozoic Section of Well Dot 1 (Doukkala Basin, Central-West Morocco). |
1990 |
| details |
Late Ashgillian |
|
Czechoslovakia |
Dufka,P. Palynomorphs in the Llandovery black shale sequence of the Prague Basin (Barrandian area, Bohemia). |
1990 |
| details |
Early Rhuddanian |
|
Czechoslovakia |
Dufka,P. Palynomorphs in the Llandovery black shale sequence of the Prague Basin (Barrandian area, Bohemia). |
1990 |
| details |
Late Aeronian |
Early Telychian |
Czechoslovakia |
Dufka,P. Acritarchs of the monograptus Sedgwickii Zone, (Zelkovice Formation, Llandovery), from Hyskov, Barrandian, Bohemian Massif |
1990 |
| details |
Tarannon |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Tarannon |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Llandoverian |
Wenlockian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Silurian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Llandoverian |
Wenlockian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Ludlovian |
Pridolian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Llandoverian |
|
Paraguay |
Wood,G.D. et al. Distinctive Silurian chitinozoans from the Itacurubi Group (Bargas Pena Shale), Chaco Basin, Paraguay. |
1991 |
| details |
Sheinwoodian |
|
Denmark |
Smelror,M. Palynomorphs from the Cyrtograptys centrifugus Graptolite zone (Early Wenlock, Silurian) Bornholm. |
1991 |
| details |
Toarcian |
|
Denmark |
Dybkjaer,K. Palynological zonation and palynofacies investigation of the Fjerritslev Formation (Lower Jurassic-Basal Middle Jurassic) in the Danish Subbasin |
1991 |
| details |
Wenlockian |
Gedinnian |
Libya |
Tekbali,A.O. et al. Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadamis Basin, Northwest Libya. (In: The Geology of Libya. M.J.Salem et al, editors) |
1991 |