| details |
Moridunian |
Whitlandian |
Gondwanaland |
Paris,F. The Ordovician chitinozoan biozones of the northern Gondwana Domain |
1990 |
| details |
Late Llandoverian |
Wenlockian |
USSR(Moscow) |
Aristova,K.E. Palynological research of Silurian deposits in the Moscow Basin. |
1976 |
| details |
Ordovician |
Silurian |
India(Himachal Pradesh) |
Khanna,A.K. et al. Reappraisal of stratigraphic status of Pin Dolomite |
1983 |
| details |
Ordovician |
Silurian |
Baltic |
Eisenack,A. Chitinozoa of the Baltic Region. |
1968 |
| details |
Late Idavere |
Porkuni |
Norway |
Grahn,Y. et al. Caradocian and Ashgillian chitinozoan biostratigraphy of the Oslo Asker and Ringerike Districts, Oslo Region, Norway. |
1994 |
| details |
Arenigian |
Middle Ordovician |
USSR(Yaroslav) |
Umnova,N.I. Distribution of chitinozoa in the Ordovician of the Russian Platform |
1964 |
| details |
Early Ordovician |
Middle Ordovician |
Sweden |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Early Caradocian |
Middle Caradocian |
Tennessee |
Siesser,W.G. et al. Caradocian chitinozoans from the Central Basin, Tennessee |
1998 |
| details |
Tremadocian |
Llandoverian |
Europe |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Arenigian |
Llandoverian |
Africa(Sahara) |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Late Arenigian |
Llandeilian |
Sweden |
Grahn,Y. Early Ordovician chitinozoa from Oland. |
1980 |
| details |
Llanvirnian |
Llandeilian |
England(Shropshire) |
Jenkins,W.A.M. Ordovician chitinozoa from Shropshire. |
1967 |
| details |
Early Ludlovian |
Late Siegenian |
Europe |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Middle Ordovician |
Late Ordovician |
USSR(Latvian SSR) |
Gailite,L.K. Chitinozoa. (In: The Ordovician of Latvia. R.Z.H.Ulst et al, editor) |
1982 |
| details |
Early Ordovician |
Late Ordovician |
USSR(Estonian SSR) |
Eisenack,A. The microfauna of the Ostseekalke. 1. Chitinozoa, Hystrichosphaeres. |
1965 |
| details |
Ordovician |
Gothlandian |
Algeria |
Taugourdeau,P. et al. Distribution and description of Silurian-Devonian chitinozoans from some Drillings of the C.R.E.P.S., the C.F.P.A. and the S.M.Repal of the Sahara. |
1960 |
| details |
Emsian |
Frasnian |
Ghana |
Anan-Yorke,R. Devonian chitinozoa and acritarcha from exploratory oil wells on the shelf and coastal region of Ghana, West Africa. |
1974 |