| original |
Llandeilian |
|
Baltic |
Eisenack,A. New Mikrofossils of the Baltic Silurian.1. |
1931 |
| details |
Ordovician |
Silurian |
Nd |
Deflandre,G. Groups Incertae Sedis.Hystrichospheres. chitinozoans. |
1952 |
| details |
Ordovician |
Gothlandian |
Nd |
Matthes,H.W. Introduction to micropaleontology |
1956 |
| details |
Silurian |
|
France(Aquitaine) |
de Jekhowsky,B. et al. The presence of chitinozoans in the Silurian in some borings from Aquitaine. |
1961 |
| details |
Silurian |
|
Baltic |
Eisenack,A. Neotypes of Baltic Silurian chitinozoan and new species. |
1962 |
| details |
Gothlandian |
|
Libya |
Combaz,A. et al. Observations on the structure of chitinozoans. |
1962 |
| details |
Gothlandian |
|
Africa(Sahara) |
Combaz,A. et al. Observations on the structure of chitinozoans. |
1962 |
| details |
Nd |
|
Nd |
Jansonius,J. Morphology and classification of some chitinozoa |
1964 |
| details |
Silurian |
|
Algeria |
de Jekhowsky,B. Organic microfossils (spores, hystrichospheres, chitinozoans, etc.), of the Saharan Pre-Quaternary |
1965 |
| details |
Silurian |
|
Africa(Sahara) |
Combaz,A. Strata with Tasmanaceae in the Paleozoic of the Sahara. |
1966 |
| details |
Late Tremadocian |
Early Gedinnian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1966 |
| details |
Nd |
|
Nd |
Tappan,H. Chitinozoan classification. |
1966 |
| details |
Tremadocian |
Early Gedinnian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1967 |
| details |
Early Llandoverian |
Frasnian |
Brazil(Amazonas) |
Lange,F.W. Biostratigraphic subdivisions and revision of the Silurian-Devonian column of the Lower Amazon Basin. |
1967 |
| details |
Silurian |
|
Brazil(Para) |
Boekel,N.M.Van Silurian microfossils from the Garape da Rainha, Pa Para |
1968 |
| details |
Late Ordovician |
|
USSR(Lithuanian SSR) |
Bagdasaryan,L.L. Phytoplankton from the lower oil bearing formations of the Baltic States. |
1969 |
| details |
Devonian |
|
Iowa |
Urban,J.B. Some new chitinozoans from the Cedar Valley Formation of Iowa. |
1970 |