| details |
Llanvirnian |
|
Europe |
Paris,F. The chitinozoans in the Paleozoic of Southwest Europe. |
1981 |
| details |
Late Llandeilian |
|
Sweden |
Grahn,Y. Middle Ordovician chitinozoa from Oland |
1981 |
| details |
Middle Llandeilian |
Late Llandeilian |
Sweden |
Grahn,Y. Ordovician chitinozoa from the Stora Asbotorp Boring in Vastergotland South-Central Sweden |
1981 |
| details |
Ordovician |
|
USSR(Baltic) |
Paris,F. The chitinozoans in the Paleozoic of Southwest Europe. |
1981 |
| details |
Early Caradocian |
|
Sweden |
Grahn,Y. Caradocian and Ashgillian chitinozoa from the subsurface of Gotland |
1982 |
| details |
Late Arenigian |
Early Llanvirnian |
Sweden |
Grahn,Y. Chitinozoophoran palaeoecology in the Ordovician of Oland |
1982 |
| details |
Middle Ordovician |
|
USSR(Latvian SSR) |
Gailite,L.K. Chitinozoa. (In: The Ordovician of Latvia. R.Z.H.Ulst et al, editor) |
1982 |
| details |
Middle Ordovician |
|
USSR(Latvian SSR) |
Gailite,L.K. Chitinozoa. (In: The Ordovician of Latvia. R.Z.H.Ulst et al, editor) |
1982 |
| details |
Nd |
|
Nd |
Zaslavskaya,N.M. On the morphology and systematics of chitinozoa. (In: Problematic Fossils of the USSR. B.S.Sokolov, editors) |
1990 |
| details |
Early Virgulian |
|
Estonia |
Nolvak,J. Biostratigraphy: Ordovician chitinozoans |
1990 |
| details |
Nd |
|
Nd |
Cashman,P.B. Lower Devonian chitinozoan Juveniles: Oldest fossil evidence of a Juvenile Stage in Protists, with an interpretation of their Ontogeny and relationship to all Ogromiid Foraminifera |
1991 |
| details |
Late Kukruse |
|
Sweden |
Lindstrom,M. et al. Post-impact deposits in Tvaren, a marine Middle Ordovican Crater Southern of Stockholm, Sweden |
1994 |
| details |
Late Uhaku |
Kukruse |
Baltic |
Lindstrom,M. et al. Post-impact deposits in Tvaren, a marine Middle Ordovican Crater Southern of Stockholm, Sweden |
1994 |
| details |
Middle Ordovician |
Late Ordovician |
Iran |
Ghavidel-Syooki,M. Chitinozoan biostratigraphy and palaeogeography of Late Ordovician and Early Silurian strata at southwestern Bojnurd City in eastern Alborz Mountain Ranges (Kopet Dagh Region), Southeastern Caspian Sea. |
1998 |