| details |
Caradocian |
|
Sweden |
Paris,F. et al. A revised chitinozoan classification |
1999 |
| details |
Llanvirnian |
|
Poland |
Bednarczyk,W.S. Chitinozoa-bearing horizons in the Ordovician of Northern Poland in the light of conodont stratigraphy. |
1999 |
| details |
Late Ordovician |
|
Estonia |
Paris,F. et al. Biological interpretation and paleobiodiversity of a cryptic fossil group: the "chitinozoan animal". |
1998 |
| details |
Late Ordovician |
|
Poland |
Paris,F. et al. Biological interpretation and paleobiodiversity of a cryptic fossil group: the "chitinozoan animal". |
1998 |
| details |
Late Ordovician |
|
Baltic |
Paris,F. et al. Biological interpretation and paleobiodiversity of a cryptic fossil group: the "chitinozoan animal". |
1998 |
| details |
Late Ordovician |
|
Estonia |
Paris,F. et al. Biological interpretation and paleobiodiversity of a cryptic fossil group: the "chitinozoan animal". |
1998 |
| details |
Idavere |
Keila |
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 |
Llanvirnian |
|
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 Idavere |
Early Keila |
Norway |
Grahn,Y. et al. Caradocian and Ashgillian chitinozoan biostratigraphy of the Oslo Asker and Ringerike Districts, Oslo Region, Norway. |
1994 |
| details |
Early Caradocian |
|
USSR(Estonian SSR) |
Grahn,Y. et al. Chitinozoan dating of Ordovician impact events in Sweden and Estonia; a preliminary note. |
1993 |
| details |
Caradocian |
|
Baltic |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Caradocian |
|
Scandinavia |
Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia |
1993 |
| details |
Late Ordovician |
|
Missouri |
Miller,M.A. Paniculaferum missouriensis, gen.et sp.nov., a new Upper Ordovician acritarch from Missouri, USA. |
1991 |
| details |
Late Ordovician |
|
Oklahoma |
Miller,M.A. Paniculaferum missouriensis, gen.et sp.nov., a new Upper Ordovician acritarch from Missouri, USA. |
1991 |
| details |
Late Ordovician |
|
Kansas |
Miller,M.A. Paniculaferum missouriensis, gen.et sp.nov., a new Upper Ordovician acritarch from Missouri, USA. |
1991 |
| details |
Late Virgulian |
|
Estonia |
Nolvak,J. Biostratigraphy: Ordovician chitinozoans |
1990 |