| details |
Middle Arenigian |
Middle Ludlovian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1966 |
| details |
Nd |
|
Nd |
Tappan,H. Chitinozoan classification. |
1966 |
| original |
Middle Llanvirnian |
|
Estonia |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Early Arenigian |
Middle Ludlovian |
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 |
Arenigian |
Llandoverian |
Canada(NWT) |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Silurian |
Devonian |
France(Cotes du Nord) |
Deunff,J. et al. The presence of a paleoplankton of acritarchs, chitinozoans, spores, scolecodonts and radiolarians from the Siluro - Devonian Formations of the Plourach Region, (Cotes-du-Nord). |
1971 |
| details |
Ordovician |
|
Romania |
Beju,D. The present stage of the palynological researches concerning the Antecretaceous of Romania. |
1971 |
| details |
Early Arenigian |
Late Famennian |
Nd |
Combaz,A. Stratigraphy of the chitinozoans. |
1972 |
| details |
Ordovician |
|
Spain |
Robardet,M. The originality of the Southern Iberian Peninsula Hercynian Segment of the Lower Paleozoic, Ordovician, Siluran and the Devonian in the northern Seville Province, Spain. |
1976 |
| details |
Virgilian |
|
Kansas |
Tasch,P. et al. Pennsylvanian chitinozoans from eastern Kansas. |
1978 |
| details |
Llanvirnian |
|
Morocco |
Rahmani,K. Palynological study of the Paleozoic in the Region of Rabat, dating the Ordovician. |
1979 |
| details |
Nd |
|
Nd |
Taugourdeau,P. Several systematic attributes proposed for chitinozoa. |
1981 |
| details |
Middle Llanvirnian |
|
Estonia |
Paris,F. et al. A revised chitinozoan classification |
1999 |
| details |
Middle Llanvirnian |
|
Estonia |
Paris,F. et al. A revised chitinozoan classification |
1999 |