original |
Early Ordovician |
|
Sweden |
Kjellstrжm,G. Ordovician microplankton (baltisphaerids) from the Grotlingbo borehole No.1 in Gotland, Sweden. |
1971 |
original |
Early Maastrichtian |
|
Georgia |
Firth,J.V. Dinoflagellate biostratigraphy of the Maastrichtian to Danian interval in the US Geological Survey, Albany core, Georgia, USA. |
1987 |
original |
Early Ludlovian |
Middle Ludlovian |
Argentina(San Juan) |
Rubinstein,C.V. Acritarch from the Silurian of the Jachal River Valley (Los Esp Formation), San Juan Province, Republica Argentina Subgroups Herkumorphita, Netromorphitae and Polgonomorphitae |
1989 |
original |
Early Gothlandian |
|
Argentina(San Juan) |
Melendi,D.L. et al. Palynological data on the Ordovician-Silurian boundary of Talacasto, San Juan Province.Part 1. Lower Silurian. |
1982 |
original |
Early Cretaceous |
|
Wyoming |
Davis,P.N. Palynology and stratigraphy of the Lower Cretaceous rocks of northern Wyoming |
1963 |
original |
Early Arenigian |
Middle Arenigian |
Australia(Queensland) |
Playford,G. et al. Acritarch palynoflora of the Coolibah Formation (Lower Ordovician) Georgina Basin,Queensland. (In: Palynological and Palaeobotanical Studies in Honour of Basil E. Balme. P.A. Jell and G. Playford, editors) |
1988 |
original |
Cenomanian |
Early Turonian |
Australia(N.Territory) |
Norvick,M.S. et al. Palynology of the Cenomanian of Bathurst Island, Northern Territory, Australia. |
1976 |
original |
Carixian |
|
Portugal |
Davies,E.H. The miospore and dinoflagellate cyst Oppel-Zonation of the Lias of Portugal |
1985 |
original |
Caradocian |
Wenlockian |
Nepal |
Sinha,H.N. et al. Record of Prolific and Indubitable acritarchs from the Lower Paleozoic strata of the Tethyan Garhwal Himalaya and age implication |
1996 |
original |
Callovian |
Oxfordian |
South Dakota |
Griffith,C.E. Palynostratigraphy of the Sundance Formation (Jurassic), of the Black Hills area, South Dakota and Wyoming. |
1972 |
original |
Callovian |
Oxfordian |
Wyoming |
Griffith,C.E. Palynostratigraphy of the Sundance Formation (Jurassic), of the Black Hills area, South Dakota and Wyoming. |
1972 |
original |
Ashgillian |
|
Poland |
Kremer,B. Acritarchs from the Upper Ordovician of southern Holy Cross Mountains, Poland. |
2001 |