| original |
Middle Ordovician |
Late Ordovician |
Oklahoma |
Taugourdeau,P. Ordovician chitinozoans of the USA; Comparison with ancient faunas. |
1965 |
| details |
Late Caradocian |
|
USA |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Llanvirnian |
Llandeilian |
North America |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Llanvirnian |
Llandeilian |
Asia |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Caradocian |
|
Canada(Quebec) |
Martin,F. Ordovician chitinozoa from Quebec and Ontario, Canada. |
1975 |
| details |
Nd |
|
Nd |
Locquin,M.V. Thie Chitinomycetes of chitinozoa Paleozoic fossils |
1976 |