original |
Ashgillian |
|
Canada(Quebec) |
Martin,F. Some Upper Ordovician chitinozoans and acritarchs from the White Head Formation of Gaspe, Quebec. Gaspesie, Quebec. |
1980 |
original |
Early Cambrian |
|
Scotland |
Downie,C. Lower Cambrian acritarchs from Scotland, Norway, Greenland and Canada. |
1982 |
original |
Early Cambrian |
|
Norway |
Downie,C. Lower Cambrian acritarchs from Scotland, Norway, Greenland and Canada. |
1982 |
original |
Senonian |
|
Australia(W.Australia) |
Cookson,I.C. et al. Microfossils of Australian Mezosoic and Tertiary sediments. Second part. |
1982 |
original |
Harnagian |
Soudleyan |
England(Shropshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Caradoc Series, Shropshire, England. |
1984 |
original |
Llandeilian |
|
Wales(Carmarthenshire) |
Turner,R.E. Acritarchs from the type area of the Ordovician Llandeilo series, South Wales. |
1985 |
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 |
Tremadocian |
Arenigian |
Spain |
Mette,W. Acritarchs from Lower Paleozoic rocks of the Western Sierra Morena, southwest Spain and biostratigraphic results. |
1989 |