| original |
Late Ordovician |
|
Nigeria |
Bouche,P.M. Silurian chitinozoans from S.1.Djado, (Nigerian Sahara). |
1965 |
| details |
Caradocian |
|
Africa |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Soudleyan |
|
Wales |
Atkinson,K. et al. Lower Caradocian (Upper Ordovician) chitinozoa from North Wales. |
1971 |
| details |
Ashgillian |
|
Belgium |
Martin,F. The Upper Ordovician and Lower Silurian at Deerlijk (Belgium) |
1973 |
| details |
Late Ordovician |
|
Nigeria |
Locquin,M.V. Thie Chitinomycetes of chitinozoa Paleozoic fossils |
1976 |
| details |
Nd |
|
Africa |
Zalusky,D.W. Paleobiogeography of chitinozoa. (In: Stratigraphic Micropaleontology of Atlantic Basin and Borderlands. F.M.Swain, editor) |
1977 |
| details |
Arenigian |
|
Africa(Sahara) |
Profichet,P. A note on the morphology of Saharan Paleozoic chitinozoa |
1979 |
| details |
Early Llanvirnian |
|
England(Cumberland) |
Arthurton,R.S. et al. Ordovician and Silurian. (In: Geology of the Country around Penrith.) |
1981 |
| details |
Devonian |
|
Brazil(Para) |
da Costa,N.M. Small chitinozoa of the Mapuera River, State of Para. |
1982 |
| details |
Ashgillian |
|
China(Kweichow) |
Qian,Z.-S. et al. Chitinozoans from the Wufeng Formation, (Ashgillian), of the Yangzi Region |
1989 |
| details |
Hirnantian |
|
Gondwanaland |
Paris,F. The Ordovician chitinozoan biozones of the northern Gondwana Domain |
1990 |