| original |
Arenigian |
|
Europe |
Paris,F. The chitinozoans in the Paleozoic of Southwest Europe. |
1981 |
| details |
Vendian |
Early Paleozoic |
USSR(Kazakh SSR) |
Sargaskaev,Z.S. et al. Some chitinozoans in the Kokzhotsk series of the Karatai range |
1988 |
| details |
Whitlandian |
|
Gondwanaland |
Paris,F. The Ordovician chitinozoan biozones of the northern Gondwana Domain |
1990 |
| details |
Arenigian |
|
Tunisia |
Young,T.P. Ooidal Ironstones from Ordovician Gondwana; a review |
1992 |
| details |
Late Arenigian |
|
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 |
Scythian |
|
USSR(Moldavian SSR) |
Vaida,M. et al. Palynological study of cores from the borehole 1 Liman (Scythia Platform, Moldavia) |
1997 |
| details |
Arenigian |
|
Algeria |
Melou,M. et al. Ordovician brachiopods and chitinozoans from northeastern Algerian Sahara; stratigraphic and paleogeographic implications. |
1999 |
| details |
Middle Caradocian |
|
Belgium |
Samuelsson,J. et al. Ordovician chitinozoan biozonation of the Brabant Massif, Belgium. |
2000 |