| details |
Middle Caradocian |
Siegenian |
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. 2: Index to Parts 1 and 2. |
1977 |
| details |
Ludlovian |
Pridolian |
Spain |
Rodriguez Gonzalez,R.M. Palynology of the Upper Silurian-Lower Devonian Formations of the Cantabrica Cordillera, Northeast Spain. |
1983 |
| details |
Early Ashgillian |
Middle Ashgillian |
Canada(Anticosti Island) |
Jacobson,S.R. et al. Acritarch biostratigraphy of the Dicellograptus complanatus graptolite zone from the Vaureal form Ation, (Ashgillian), Anticosti Island, Quebec, Canada. |
1985 |
| details |
Ashgillian |
Llandoverian |
Argentina(La Rioja) |
Rubinstein,C.V. Ordovician acritarchs from northwestern Argentina: new insights into the biostratigraphy and paleonvironmental aspects of the Central Andean Basin and Famatina. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Middle Ordovician |
Late Ordovician |
Iran |
Ghavidel-Syooki,M. Acritarch biostratigraphy and palaeogeography of Lower Palaeozoic rock units at Southwestern Kashmar City, Central Iran. |
1998 |
| details |
Late Llandoverian |
Early Wenlockian |
Argentina(La Rioja) |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |
| details |
Late Llandoverian |
Early Wenlockian |
Argentina(San Juan) |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |
| details |
Late Llandoverian |
Early Wenlockian |
Argentina(Mendoza) |
Rubinstein,C.V. Silurian acritarchs from South America: A review. |
1996 |
| details |
Caradocian |
Ashgillian |
Turkey |
Steemans,P. et al. Ordovician and Silurian cryptospores and miospores from southeastern Turkey. |
1996 |
| details |
Caradocian |
Ashgillian |
Romania |
Olaru,L. Ordovician chitinozoans and acritarchs from geological formations of Bugeac Promontory (North Dobrogea, Romania). |
1998 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Middle Ordovician |
|
Canada(Quebec) |
Loeblich,A.R.,Jr. et al. Some Middle and Late Ordovician microphytoplankton from Central North America. |
1978 |
| details |
Llandoverian |
|
New York |
Miller,M.A. et al. Palynomorphs from the Silurian Medina Group, (Lower Llandovery), of the Niagara Gorge, Lewiston, New York, USA. |
1982 |
| details |
Ashgillian |
|
Libya |
Molyneux,S.G. et al. Late Ordovician palynomorphs. (In: Palynology of Northeast Libya. B.Thusu and B.Owens, editors) |
1985 |
| details |
Llandoverian |
|
Argentina(San Juan) |
Melendi,D.L. et al. Palynological data from the Ordovician - Silurian Boundary of Talacasto Locality, (San Juan Province, Argentina) Part II. The microflora associated with Climacograptus putillus, (Hall). |
1983 |
| details |
Ashgillian |
|
Morocco |
Elaouad-Debbaj,Z. Acritarchs from the Upper Ordovician (Caradoc-Ashgill) of the Anti-Atlas, Morocco. |
1988 |
| details |
Arenigian |
|
China(Shanghai) |
Hu,Y. Micropalaeoflora from the Early Ordovician in Gaoqiao Region of Shaanxi and its stratigraphic significance. |
1986 |