| original |
Givetian |
|
Illinois |
Collinson,C. et al. Chitinozoan faunule of the Devonian Cedar Valley Formation. |
1958 |
| details |
Middle Devonian |
|
Iowa |
Dunn,D.L. Devonian chitinozoans from the Cedar Valley Formation in Iowa. |
1959 |
| details |
Givetian |
|
USA |
Taugourdeau,P. Techniques of study, morphology and classification of chitinozoans. |
1966 |
| details |
Givetian |
|
North America |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Givetian |
|
Asia |
Taugourdeau,P. et al. Chitinozoans-Illustrated bibliographic analysis |
1967 |
| details |
Early Gothlandian |
|
Brazil(Para) |
da Costa,N.M. Silurian chitinozoa of Igarape Da Rainha, State of Para |
1971 |
| details |
Early Gothlandian |
|
Brazil(Amazonas) |
da Costa,N.M. Brazilian chitinozoans and their stratigraphic importance |
1971 |
| details |
Nd |
|
Nd |
Urban,J.B. A reexamination of chitinozoa from the Cedar Valley Formation of Iowa with observations on their morphology and distribution. |
1972 |
| details |
Middle Devonian |
|
Iowa |
Urban,J.B. et al. Chitinozoa of the Wapsipinicon Formation, (Middle Devonian), of Iowa. |
1973 |
| details |
Givetian |
|
Illinois |
Locquin,M.V. Thie Chitinomycetes of chitinozoa Paleozoic fossils |
1976 |