| 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 |
Ordovician |
Silurian |
France(Vosges) |
Doubinger,J. et al. Discovery of chitinozoans of Silurian age in the Steige Shales, (L'Andlau Valley, Vosges). |
1963 |
| details |
Silurian |
|
Algeria |
de Jekhowsky,B. Organic microfossils (spores, hystrichospheres, chitinozoans, etc.), of the Saharan Pre-Quaternary |
1965 |
| details |
Late Ordovician |
|
Iowa |
Taugourdeau,P. Ordovician chitinozoans of the USA; Comparison with ancient faunas. |
1965 |
| details |
Early Arenigian |
Middle Famennian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1966 |
| details |
Ordovician |
|
Missouri |
Echols,D.J. et al. Ordovician chitinozoa from Missouri. |
1966 |
| details |
Nd |
|
Nd |
Tappan,H. Chitinozoan classification. |
1966 |
| details |
Chesterian |
|
Oklahoma |
Sanders,R.B. Palynological investigation of Desmoinesian and Missourian strata, Elk City area, Oklahoma. |
1967 |
| details |
Early Arenigian |
Early Ludlovian |
Nd |
Jansonius,J. Systematics of the chitinozoa. |
1967 |
| details |
Early Siegenian |
Middle Famennian |
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 |
Ordovician |
|
Arabian Pen.States |
Hemer,D.O. Diagnostic palynological fossils from Arabian formations. |
1968 |
| details |
Arenigian |
Givetian |
Canada(NWT) |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Early Caradocian |
|
USSR(Lithuanian SSR) |
Ditsevichyus,E.K. Ordovician and Silurian chitinozoan fauna of Lithuania and its stratigraphic significance |
1970 |