| original |
Late Campanian |
|
Canada(Alberta) |
Harland,R. Dinoflagellate cysts and acritarchs from the Bearpaw Formation, (Upper Campanian), of southern Alberta, Canada. |
1973 |
| original |
Aptian |
Albian |
Australia(Queensland) |
Burger,D. Palynological studies in the Lower Cretaceous of the Surat Basin, Australia. |
1980 |
| original |
Early Domerian |
|
Portugal |
Davies,E.H. The miospore and dinoflagellate cyst Oppel-Zonation of the Lias of Portugal |
1985 |
| original |
Middle Arenigian |
|
Wales |
Molyneux,S.G. Appendix: Acritarchs and chitinozoa from the Arenig series of southwest Wales. (In: The Arenig Series in South Wales: Stratigraphy and palaeontology.) |
1987 |
| original |
Middle Permian |
|
Australia(Queensland) |
McLoughlin,S. Geology of the Inglis Dome, Denison Trough, Central Queensland |
1988 |
| 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 |
Late Cambrian |
|
India(Himachal Pradesh) |
Tiwari,M. Precambrian-Cambrian boundary microbiota from Chert Phosphorite Member of Tal Formation in the Korgai Syncline, Lesser Himalaya India |
1996 |