| details |
Algonkian |
|
Czechoslovakia |
VavrdovЎ,M. Microorganisms (Acritarcha), from Proterozoic Lydites of Bohemia. |
1966 |
| details |
Algonkian |
|
Czechoslovakia |
VavrdovЎ,M. Microorganisms (Acritarcha), from Proterozoic Lydites of Bohemia. |
1966 |
| details |
Siegenian |
|
Belgium |
Vanguestaine,M. Reworked acritarchs in the Siegenian and Emsian (Lower Devonian), from Dinant Synclinorium, (Belgium). |
1979 |
| details |
Gedinnian |
Middle Emsian |
Canada(Arctic) |
Uyeno,T.T. Biostratigraphy and conodont faunas of Upper Ordovician through Middle Devonian Rocks, eastern Arctic Archipelago |
1990 |
| details |
Late Courceyan |
|
Canada(Nova Scotia) |
Utting,J. et al. Thermal maturity of the Lower Carboniferous Horton Group, Nova Scotia. (In: Recent Advances in Organic Petrology and Geochemistry; A Symposium Honoring Dr P.Hacquebard. W.Kalkreuth et al, editors) |
1991 |
| details |
Late Visean |
|
Canada(Alberta) |
Utting,J. Palynostratigraphic investigation of 74 core samples (Upper Paleozoic) Submitted by J.E.Barclay from three boreholes in the Peace River Arch area (Nts 84D,83M) |
1989 |
| details |
Barremian |
Early Aptian |
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 |
Early Aptian |
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 |
Early Aptian |
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 |
Early Aptian |
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 |
Early Cenomanian |
|
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 |
Early Permian |
|
India(Himachal Pradesh) |
Upadhyay,R. et al. First find of the Early Permian lower Gondwana plant remains and palynomorphs from the Chhongtash Formation (upper Shyok Valley), eastern Karakoram, India. |
1999 |
| original |
Early Cambrian |
|
Finland |
Tynni,R. New results of studies on the fossils in the Lower Cambrian sediment deposit of the Soderf Jarden Basin |
1982 |
| details |
Carboniferous |
Permian |
Australia(Tasmania) |
Truswell,E.M. Palynology of the Permo-Carboniferous in Tasmania: An Interim report. |
1978 |
| details |
Late Riphean |
|
Canada(Arctic) |
Traverse,A. Manifestations of sporopollenin, Chitin and other "Non-Degradable Plastics" in the geologic record, as evidence for major biologic events |
1992 |
| details |
Riphean |
|
Canada(Arctic) |
Traverse,A. Manifestations of sporopollenin, Chitin and other "Non-degradab plastics" in the geologic record, as evidence for major biologic events |
1992 |
| details |
Late Arenigian |
|
Italy(Sardinia) |
Tongiorgi,M. et al. The Solanas Sandstone of Central Sadinia: New paleontological data, (acritarchs) and an attempt of geological interpretation, (A "Post-Sardinian" Molasse). |
1984 |