| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Middle Ordovician microplankton from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Early Chesterian |
Middle Chesterian |
Oklahoma |
Harris,R.W. Palynology of the Sand Branch Member of the Caney Shale Formation, (Mississippian), of Southern Oklahoma. |
1971 |
| details |
Middle Ordovician |
Late Ordovician |
Sweden |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Nd |
|
Nd |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Caradocian |
|
Sweden |
Jux,U. Fine-Structures in the walls of some Paleozoic Baltisphaerids. |
1971 |
| details |
Silurian |
|
Baltic |
Sheshegova,L.I. The acritarchs of the Paleozoic. |
1971 |
| details |
Silurian |
|
USSR(European) |
Sheshegova,L.I. Some Silurian acritarchs of Podolia. |
1971 |
| details |
Early Arenigian |
|
France(Herault) |
Rauscher,R. Lower Paleozoic acritarchs from the Montagne Noire. |
1971 |
| details |
Arenigian |
|
Czechoslovakia |
Kjellstrжm,G. Middle Ordovician microplankton from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
| details |
Ordovician |
|
Poland |
Jagielska,L. Flora of the Ordovician;Microflora |
1972 |
| details |
Ordovician |
|
Poland |
Jagielska,L. Flora of the Ordovician;Microflora |
1972 |
| details |
Cambrian |
|
Poland |
Jagielska,L. Flora of the Cambrian;Microflora |
1972 |
| details |
Early Ordovician |
|
Sweden |
Johansson,H.G. et al. Notes on a new locality at Ljungsbro in the Lower Ordovician of Ostergotland, Southern Sweden. |
1972 |
| details |
Middle Ordovician |
|
Sweden |
Kjellstrжm,G. Lower Viruan microplankton from a Boring in Oland, Sweden |
1972 |