| details |
Llandeilian |
Ashgillian |
Algeria |
Oulebsir,L. et al. Ordovician chitinozoa from Algeria: Biostratigraphy and paleogeography |
1995 |
| details |
Late Llandeilian |
Ashgillian |
Canada(Arctic) |
Achab,A. et al. Ordovician chitinozoans from the Arctic Platform and the Franklinian Miogeosyncline in northern Canada |
1995 |
| details |
Tremadocian |
Arenigian |
China(Shanghai) |
Hu,Y. Micropalaeoflora from the Early Ordovician in Gaoqiao Region of Shaanxi and its stratigraphic significance. |
1986 |
| details |
Llandeilian |
|
Spain |
Cramer,F.H. et al. Iberian chitinozoans |
1978 |
| details |
Caradocian |
|
Portugal |
Paris,F. Chitinozoans of the Louredo Formation, Upper Ordovician of the Bucaco Syncline, (Portugal). |
1979 |
| details |
Caradocian |
|
Portugal |
Paris,F. Chitinozoans of the Louredo Formation, Upper Ordovician of the Bucaco Syncline, (Portugal). |
1979 |
| details |
Early Ordovician |
|
Nd |
Jansonius,J. et al. Chitinozoa. |
1978 |
| details |
Early Ordovician |
|
China(Yunnan) |
Kao,L. Lower Ordovician chitinozoans from Wuding and Luquan, Yunnan. |
1980 |
| details |
Early Gothlandian |
|
Brazil(Para) |
da Costa,N.M. Stratigraphic distribution and biochronology of chitinozoans from the Trombetas Formation, State of Para. |
1974 |
| details |
Early Llandeilian |
|
Europe |
Paris,F. The chitinozoans in the Paleozoic of Southwest Europe. |
1981 |
| details |
Silurian |
|
Brazil(Amazonas) |
da Costa,N.M. Palynoplankton of Paleozoic sediments of the State of Amazonas. |
1982 |
| details |
Early Ludlovian |
|
Romania |
Givulescu,R. Fossil flora of Romania. (3rd Supplement) |
1978 |
| details |
Llanvirnian |
|
France(Calvados) |
Rauscher,R. Micropaleontological and stratigraphic research in the Ordovician and Silurian in France. Study of the acritarchs, chitinozoans and spores. |
1973 |
| details |
Ashgillian |
|
Belgium |
Martin,F. The Upper Ordovician and Lower Silurian at Deerlijk (Belgium) |
1973 |
| details |
Late Ashgillian |
|
Morocco |
Elaouad-Debbaj,Z. Ashgillian chitinozoa of the Anti-Atlas, (Morocco). |
1984 |
| details |
Arenigian |
|
China(Yunnan) |
Hou,J.-P. et al. Chitinozoan biostratigraphy in China |
1982 |
| details |
Llandeilian |
|
Spain |
Cramer-Diez,F.H. et al. Llandeilian chitinozoans from Rioseco, Asturias, Spain. Preliminary note. |
1972 |