| details |
Late Ordovician |
|
Baltic |
Nolvak,J. Results of quantitative stratigraphic correlation of the Upper Ordovician in the Baltic;Chitinozoans. (In: Quantitative Stratigraphy: Retrospective Evaluation and Future Development. A. Oleynikov and M. Rubel editors) |
1989 |
| details |
Late Ordovician |
|
Baltic |
Nolvak,J. Results of quantitative stratigraphic correlation of the Upper Ordovician in the Baltic;Chitinozoans. (In: Quantitative Stratigraphy: Retrospective Evaluation and Future Development. A. Oleynikov and M. Rubel editors) |
1989 |
| details |
Nabala |
Vormsi |
Estonia |
Meidla,T. et al. Middle and Upper Ordovician westward of Tallin locality 2:3 Aul |
1990 |
| details |
Nabala |
Vormsi |
Estonia |
Meidla,T. et al. Middle and Upper Ordovician westward of Tallin locality 2:3 Aul |
1990 |
| details |
Rakvere |
Nabala |
Estonia |
Nolvak,J. et al. Upper Ordovician South from Tallinn and Boring cores from Sargh Field-Station locality 31 Paekna Quarry |
1990 |
| details |
Rakvere |
|
Estonia |
Nolvak,J. et al. Upper Ordovician South from Tallinn and Boring cores from Sargh Field-Station locality 31 Paekna Quarry |
1990 |
| details |
Nabala |
|
Estonia |
Nolvak,J. et al. Upper Ordovician South from Tallinn and Boring cores from Sargh Field-Station locality 31 Paekna Quarry |
1990 |
| details |
Pirgu |
|
Estonia |
Polma,L. et al. Upper Ordovician South from Tallinn and Boring cores from Sargh Field Station:Locality 3:2 Lohu outcrop |
1990 |
| details |
Late Chazyan |
Blackriveran |
Oklahoma |
Derby,J.R. et al. Biostratigraphy of the Timbered Hills, Arbuckle and Simpson Groups, Cambrian and Ordovician, Oklahoma; A review of correlation tools and techniques available to the explorationist. (In: Late Cambrian Ordovician Geology of the Southern Midcontinent, 1989 Symposium. K.S. Johnson, editor) |
1991 |