| details |
Barremian |
Albian |
Virginia |
Upchurch,G.R. et al. Paleoecology of the Conifers Frenlopsis and Pseudofrenelopsis (Cheirolepidiaceae) from the Cretaceous Potomac Group of Maryland and Virginia. (In: Geobotany II -Edited by R.C.Romans) |
1981 |
| details |
Barremian |
Albian |
Maryland |
Upchurch,G.R. et al. Paleoecology of the Conifers Frenlopsis and Pseudofrenelopsis (Cheirolepidiaceae) from the Cretaceous Potomac Group of Maryland and Virginia. (In: Geobotany II -Edited by R.C.Romans) |
1981 |
| details |
Albian |
Cenomanian |
Yugoslavia |
Ercegovac,M.D. Organic matter and degree of its thermal change in Mokranja Flysch, (Timocka Krajina). |
1981 |
| details |
Albian |
Cenomanian |
Iraq |
Venkatachala,B.S. et al. Early angiospermic pollen and associated palyno fossils in Albian-Cenomanian sediments of Abu Khema, Iraq |
1981 |
| details |
Aptian |
|
Canada(NWT,Mackenzie) |
Yorath,C.J. et al. Cretaceous and Tertiary stratigraphy and paleogeography northern Interior Plains, District of MacKenzie. |
1981 |
| details |
Hauterivian |
Early Barremian |
Spain |
Mas,J.R. The Lower Cretaceous of Northwestern Valencia |
1981 |
| details |
Bajocian |
Albian |
USSR(Kazakh SSR) |
Kazakova,Z.I. et al. Palynological study of the Mesozoic-Cenozoic deposits in the Middle Caspian. |
1981 |
| details |
Middle Albian |
Late Albian |
Canada(Ontario) |
Richardson,M.L. et al. Grant 19. Palynostratigraphic working standard for intra-basinal correlation of Albian Lignitic strata, Moose River Basin, Ontario. |
1981 |
| details |
Neocomian |
Aptian |
Australia(NSW) |
Martin,H.A. An Early Cretaceous age for subsurface Pilliga Sandstone in the Spring Ridge District, Mooki Valley. |
1981 |
| details |
Late Triassic |
|
China(Hunan) |
Gu,Z.-W. et al. Geologic age of the Jurassic-Triassic formation in southwestern Hunan, China. |
1981 |
| details |
Early Tertiary |
|
Pacific(S.China Sea) |
Anonymous The Tertiary system of the Continental Shelf in the northern area of the South China Sea |
1981 |
| details |
Late Pliensbachian |
Callovian |
USSR(Siberia) |
Ilyina,V.I. Subdivision and correlation of Jurassic deposits in Central and eastern Siberia, on the basis of palynological data |
1981 |
| details |
Jurassic |
Early Albian |
Alaska |
Timmcke,T.A. Palynolgoy of the Lower Cretaceous Pebble Shale Unit, Point Barrow, Alaska. |
1981 |
| details |
Kimmeridgian |
Campanian |
Alaska |
Witmer,R.J. et al. Biostratigraphic correlation of selected test wells of National Petroleum Reserve in Alaska |
1981 |
| details |
Neocomian |
|
Argentina(San Luis) |
Bonaparte,J.F. The Mesozoic fossils. (In: The Geology of the Province of San Luis) |
1981 |
| details |
Carixian |
Toarcian |
France(Tarn) |
Boutet,C. Palynoplanktonic study of the Triassic and Lower and Middle Jurassic of Gresigne-South Quercy |
1981 |
| details |
Carixian |
Toarcian |
France(Tarn-et-Garonne) |
Boutet,C. Palynoplanktonic study of the Triassic and Lower and Middle Jurassic of Gresigne-South Quercy |
1981 |