| details |
Miocene |
|
Arizona |
Otton,J.K. et al. Paleontological analysis of a lacustrine Carbonaceous uranium deposit at the Anderson Mine, Date Creek Basin, West-Central Arizona (USA). (In: Palynology of Ore Deposits. E.I. Robbins, editor) |
1990 |
| details |
Early Miocene |
Middle Miocene |
Japan(Osaka Pref.) |
Matsuoka,K. The Early Middle Miocene Inland paleoclimate around the Central Kinki, Southwest Japan. (In: Pacific Neogene Events, their timing nature and interrelationship. R.Tsuchi, editor) |
1990 |
| details |
Early Miocene |
|
Alaska |
Foster,H.L. et al. Fossil pollen from nonmarine sedimentary rocks of the eastern Yukon-Tanana Region, East-Central Alaska. (In: Geologic studies in Alaska by the U.S. Geological Survey,1989) |
1990 |
| details |
Late Pliocene |
Pleistocene |
China(Tsinghai) |
Chen,Z. et al. Geological environments since Pliocene and accumulation process of saline deposit in West Chaidamu Basin, Qinghai, China. |
1990 |
| details |
Late Miocene |
Early Pliocene |
Poland |
Stuchlik,L. et al. Tertiary fossil flora from the Brown Coal Mine at Belchatow (Central Poland). (In: Global Biological Events in Earth History. E.Knobloch and Z.Kvacek, editors) |
1990 |
| details |
Late Oligocene |
Pontian |
Poland |
Sadowska,A. Paleofloristic changes in the Neogene of South-Western Poland. (In: Global Biological Events in Earth History. E.Knobloch and Z.Kvacek, editors) |
1990 |
| details |
Late Oligocene |
Early Miocene |
USSR(Caucasus) |
Ataev,E.Z. Lower Miocene deposits of north-eastern foothills of the Mile Caucasus by the new facts. |
1990 |
| details |
Late Oligocene |
Early Miocene |
USSR(Azerbaijan SSR) |
Ataev,E.Z. Lower Miocene deposits of north-eastern foothills of the Mile Caucasus by the new facts. |
1990 |
| details |
Messinian |
|
Italy(Sicily) |
Suc,J.-P. et al. Continuous thermo-xeric climate in Sicily before, during and after the Messinian salinity crisis. |
1990 |
| details |
Pliocene |
Pleistocene |
Italy |
Combouriew-Nebout,N. et al. The Pliocene - Pleistocene Boundary: Precise magnetostratigraphic and climatic information according to a retailed analysis of the Vrica Stratotype, (Crotone, Italy). |
1990 |
| details |
Late Neogene |
|
USSR(Chitinskaya Oblast) |
Voskresenskii,S.S. et al. Neogene Sazanka Series of the northern part of the Amur-Zeya Depression. |
1990 |
| details |
Eocene |
Oligocene |
Canada(Yukon) |
Sweet,A.R. et al. Palynofacies, coal petrographic facies and depositional environments; Amphitheatre Formation (Eocene to Oligocene) and Ravenscrag Formation (Maestrichtian to Paleocene), Canada. (In: Recent Advances in Organic Petrology and Geochemistry; A Symposium Honoring Dr P.Hacquebard. W.Kalkreuth et al, editors) |
1991 |
| details |
Early Badenian |
|
USSR(Ukrainian SSR) |
Navrotskaya,I.L. et al. The Ugolsky Massif-a Refuge of Thermophilic flora in the Ukrainian Carpathians |
1991 |
| details |
Late Badenian |
|
Poland |
Sadowska,A. et al. The flora and age of the Brown Coal from Patnow |
1991 |
| details |
Barstovian |
|
Wyoming |
Montagne,J. Cenozoic history of the Saratoga Valley area, Wyoming and Colorado. |
1991 |
| details |
Miocene |
|
Spain |
Rivas-Carballo,M.R. The development of vegetation and climate during the Miocene in the southeastern sector of the Duero Basin (Spain). |
1991 |
| details |
Middle Pliocene |
|
Panama |
Graham,A. Studies in neotropical paleobotany:X. The Pliocene communities of Panama: Composition, numerical representations and paleocommunity paleoenvironmental reconstructions |
1991 |