| original |
Late Ludlovian |
|
E.Germany(Rostock) |
Eisenack,A. Chitinozoans, Hystrichospheres and other microfossils from the Beyrichia-Limestone. |
1955 |
| original |
Pridolian |
|
USSR(Baltic) |
Eisenack,A. Chitinozoans, Hystrichospheres and other microfossils from the Beyrichia-Limestone. |
1955 |
| details |
Silurian |
|
Nd |
Matthes,H.W. Introduction to micropaleontology |
1956 |
| details |
Llanvirnian |
Ashgillian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1966 |
| details |
Nd |
|
Nd |
Tappan,H. Chitinozoan classification. |
1966 |
| details |
Early Llanvirnian |
Middle Ashgillian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1967 |
| details |
Silurian |
|
Brazil(Para) |
Boekel,N.M.Van Silurian microfossils from the Garape da Rainha, Pa Para |
1968 |
| details |
Ashgillian |
Ludlovian |
Canada(NWT) |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Nd |
|
Nd |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Ludlovian |
|
France(Manche) |
Lefort,J.P. et al. A geologic sketch of the southern part of the Normano-Breton Gulf (Manche). |
1971 |
| details |
Llanvirnian |
|
England(Shropshire) |
Myannil,R.M. Distribution of selected Ordovician chitinozoa assemblages and species in northern Europa and their stratigraphic Valuaton. |
1971 |
| details |
Llandeilian |
|
Spain |
Cramer-Diez,F.H. et al. Llandeilian chitinozoans from Rioseco, Asturias, Spain. Preliminary note. |
1972 |
| details |
Early Llanvirnian |
Late Frasnian |
Nd |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Early Llandoverian |
|
Libya |
Deunff,J. et al. Cambrian to Ordovician palynology and stratigraphy (Northwest Libya). |
1975 |
| details |
Ordovician |
|
Africa |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Silurian |
Devonian |
Africa |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Ordovician |
|
Europe |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |