| original |
Early Shermanian |
|
New York |
Hart,C.P. Trenton Group chitinozoans from New York State. A brief review. |
1986 |
| original |
Llanvirnian |
|
Argentina(La Rioja) |
Volkheimer,W. et al. Ordovician chitinozoans from the type locality of the Gualcamayo Formation Southwest of the Guandacol, Precordillera of La Rioja, Argentina. |
1980 |
| original |
Gedinnian |
|
Brazil(Piaui) |
de Quadros,L.P. Biostratigraphic distribution of chitinozoa and acritarchs of the Parnaiba Basin |
1982 |
| details |
Arenigian |
|
USSR(Lithuanian SSR) |
Ditsevichyus,E.K. Ordovician and Silurian chitinozoan fauna of Lithuania and its stratigraphic significance |
1970 |
| details |
Ordovician |
Silurian |
Baltic |
Eisenack,A. Chitinozoa of the Baltic Region. |
1968 |
| details |
Late Llandoverian |
|
Canada(Quebec) |
Achab,A. Acritarchs from the Awantjish Formation (Upper Llandoverian) in the Val Brillant Borehold, Matapedia Valley, Quebec. |
1976 |
| details |
Middle Ordovician |
|
USSR(Vologda) |
Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. |
1976 |
| details |
Late Gothlandian |
Early Devonian |
Romania |
Stanoiu,I. et al. Specifications on the stratigraphy of the Paleozoic Formations of the Motru Valley Spring (South Carpathians). |
1975 |
| details |
Marshbrookian |
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 |
Early Telychian |
|
Saudi Arabia |
Paris,F. et al. Biostratigraphy and palaeogeographic affinities of Early Silurian chitinozoans from Central Saudi Arabia. (In: Palaeozoic Palynostratigraphy of the Kingdom of Saudi Arabia. B.Owens et al, editors) |
1995 |
| details |
Llandoverian |
Pridolian |
Argentina(San Juan) |
Rubinstein,C.V. Palynological investigations in the Lower Paleozoic of Argentina |
1993 |
| details |
Early Rhuddanian |
Telychian |
USSR(Estonian SSR) |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Early Rhuddanian |
|
Saudi Arabia |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Early Rhuddanian |
|
Tunisia |
Verniers,J. et al. A global chitinozoa biozonation for the Silurian |
1995 |
| details |
Ordovician |
Silurian |
Baltic |
Eisenack,A. Chitinozoa of the Baltic Region. |
1968 |
| details |
Llanvirnian |
Late Caradocian |
USSR |
Umnova,N.I. The use of Infrared light for the study of chitinozoa. |
1973 |
| details |
Siegenian |
|
France(Manche) |
Doubinger,J. Palynologic-Planktonic study of some Lower Devonian (Siegenian) samples from the Cotentin. |
1963 |