| original |
Tremadocian |
|
Algeria |
Deunff,J. A microplankton of hystrichospheres in the Tremadocian of the Sahara. |
1961 |
| details |
Arenigian |
|
China(Szechwan) |
Fang,X. Ordovician microflora from Ningqiang (Shaanxi) and Guangyuan (Sichuan) and its sedimentary environment. |
1990 |
| details |
Gedinnian |
Emsian |
Iran |
Ghavidel-Syooki,M. Biostratigraphy and paleo-biogeography of some Paleozoic rocks at Zagros and Alborz Mountains. |
1994 |
| details |
Early Tremadocian |
Middle Tremadocian |
Algeria |
Vecoli,M. et al. Remarks on the Cambrian-Ordovician boundary in the Algerian Sahara (Hassi-Rmel area) |
1995 |
| details |
Tremadocian |
|
France(Aude) |
Baudelot,S. et al. Palynostratigraphic information on the Lower Paleozoic of the Massif de Mouthoumet (Hautes Corbieres, Aude). |
1977 |
| details |
Tremadocian |
|
England |
Warrington,G. et al. Micropalaeontological biostratigraphy of offshore samples from South-West Britain. |
1977 |
| details |
Early Arenigian |
|
Argentina(Salta) |
Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) |
2002 |
| details |
Tremadocian |
|
Africa(Sahara) |
Deunff,J. et al. New observations and details on Lower Paleozoic acritarchs with large polar apertures. |
1974 |
| details |
Tremadocian |
|
Libya |
Deunff,J. et al. Cambrian to Ordovician palynology and stratigraphy (Northwest Libya). |
1975 |
| details |
Tremadocian |
|
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. |
1974 |
| details |
Tremadocian |
|
England(Shropshire) |
Rasul,S.M. et al. The stratigraphic distribution of Tremadoc acritarchs in the Shineton Shales succession, Shropshire, England. |
1974 |
| details |
Arenigian |
|
China(Yunnan) |
Fang,X. Ordovician micropaleoflora in Kunming-Luquan Region, Yunnan Province, and its stratigraphical significance. |
1987 |
| details |
Llanvirnian |
Baoto |
China(Szechwan) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Llanvirnian |
Baoto |
China(Shansi) |
Lai,C.-G. et al. Restudy on Ordovician of Southern Shaanxi-Northern Sichuan areas. |
1990 |
| details |
Late Cambrian |
Early Ordovician |
Algeria |
Stricanne,L. et al. A statistical approach to classification of the Cambro-Ordovician galeate acritarch plexus |
2002 |
| details |
Tremadocian |
|
Poland |
Bednarczyk,W.S. Stratigraphic position of acritarchs from the Lowermost Ordovician of the Holy Cross (Gory Swietokrzyskie) Mts in the light of conodonts studies. |
1998 |
| details |
Late Cambrian |
Early Tremadocian |
Canada(Newfoundland) |
Parsons,M.G. et al. Acritarch microfloral succession from the Late Cambrian and Ordovician (Early Tremadoc) of Random Island, Eastern Newfoundland, and its comparison to coeval microfloras, particularly those of the Eastern European Platform. |
2000 |