| details |
Late Llanvirnian |
|
Algeria |
Oulebsir,L. et al. Ordovician chitinozoa from Algeria: Biostratigraphy and paleogeography |
1995 |
| details |
Late Idavere |
|
Sweden |
Grahn,Y. et al. Precise chitinozoan dating of Ordovician impact events in Baltoscandia. |
1996 |
| details |
Late Idavere |
|
Sweden |
Grahn,Y. et al. Precise chitinozoan dating of Ordovician impact events in Baltoscandia. |
1996 |
| details |
Kukruse |
Idavere |
USSR(Estonian SSR) |
Grahn,Y. et al. Precise chitinozoan dating of Ordovician impact events in Baltoscandia. |
1996 |
| details |
Nd |
|
Nd |
Miller,M.A. Chitinozoa. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Scythian |
|
USSR(Moldavian SSR) |
Vaida,M. et al. Palynological study of cores from the borehole 1 Liman (Scythia Platform, Moldavia) |
1997 |
| details |
Llanvirnian |
|
Saudi Arabia |
Paris,F. et al. Ordovician chitinozoans from central Saudi Arabia. |
2000 |
| details |
Late Ordovician |
|
Sweden |
Bergstrжm,S.M. et al. A proposed global boundary stratotype for the base of the Upper Series of the Ordovician System: The FҐgelsҐng section, Scania, southern Sweden. |
2000 |
| details |
Late Ordovician |
|
China(Sinkiang Uighur) |
Geng,L.-Y. et al. Chitinozoan biostratigraphy in China. |
2000 |