| details |
Late Ordovician |
|
Nevada |
Finney,S.C. et al. Late Ordovician mass extinction: A new perspective from stratigraphic sections in Central Nevada. |
1999 |
| details |
Late Ordovician |
|
Nevada |
Soufiane,A. et al. Upper Ordovician and Lower Silurian chitinozoans from central Nevada and Arctic Canada. |
2000 |
| details |
Late Llanvirnian |
Early Pushgillian |
Saudi Arabia |
Al-Hajri,S. Biostratigraphy of the Ordovician chitinozoa of Northwestern Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Late Llandoverian |
Early Ludlovian |
Spain |
Cramer,F.H. et al. Iberian chitinozoans |
1978 |
| details |
Late Llandoverian |
|
Spain |
Cramer,F.H. Microplankton from three Palaeozoic formations in the Province of Leon, northwest Spain. |
1964 |
| details |
Late Llandoverian |
Wenlockian |
USSR(Moscow) |
Aristova,K.E. Palynological research of Silurian deposits in the Moscow Basin. |
1976 |
| 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 |
Late Idavere |
Porkuni |
Norway |
Grahn,Y. et al. Caradocian and Ashgillian chitinozoan biostratigraphy of the Oslo Asker and Ringerike Districts, Oslo Region, Norway. |
1994 |
| details |
Late Hirnantian |
|
Algeria |
Paris,F. et al. The effects of the final stages of the Late Ordovician glaciation on marine palynomorphs (chitinozoans, acritarchs, leiospheres) in Well NI-2 (northeast Algerian Sahara). |
2000 |
| details |
Late Caradocian |
Early Ashgillian |
Morocco |
Elaouad-Debbaj,Z. Chitinozoa from the Lower Ktaoua Formation, Upper Ordovician of the Anti-Atlas, (Morocco). |
1986 |
| details |
Late Caradocian |
|
USSR(Lithuanian SSR) |
Ditsevichyus,E.K. Ordovician and Silurian chitinozoan fauna of Lithuania and its stratigraphic significance |
1970 |
| details |
Late Caradocian |
Early Ashgillian |
Canada(Anticosti Island) |
Achab,A. Chitinozoa from the Dicellograptus complanatus zone, Vaureal Formation (Upper Ordovician) Ile d'Anticosti, Quebec. |
1977 |
| details |
Late Ashgillian |
|
Morocco |
Elaouad-Debbaj,Z. Ashgillian chitinozoa of the Anti-Atlas, (Morocco). |
1984 |
| details |
Late Arenigian |
Llandeilian |
Sweden |
Grahn,Y. Early Ordovician chitinozoa from Oland. |
1980 |
| details |
Late Arenigian |
Early Llanvirnian |
Poland |
Szaniawski,H. Systematic description of chitinozoa. (In: Chitinozoa from the Ordovician Conglomerates at Miedzygorz in the Holy Cross Mountains. R.Chlebowski and N. Szaniawski) |
1974 |
| details |
Late Arenigian |
Early Llanvirnian |
Sweden |
Grahn,Y. Chitinozoophoran palaeoecology in the Ordovician of Oland |
1982 |
| details |
Late Arenigian |
|
Sweden |
Grahn,Y. et al. Chitinozoan dating of Ordovician impact events in Sweden and Estonia; a preliminary note. |
1993 |