| original |
Early Devonian |
|
Brazil(Goias) |
Sommer,F.W. et al. Devonian chitinozoans from Goias |
1964 |
| details |
Nd |
|
Nd |
Tappan,H. Chitinozoan classification. |
1966 |
| details |
Nd |
|
Nd |
Jansonius,J. Classification and stratigraphic application of chitinozoa. |
1970 |
| details |
Devonian |
|
Africa |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Devonian |
|
Europe |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Devonian |
|
North America |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Devonian |
|
Asia |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Devonian |
|
South America |
Laufeld,S. Biogeography of Ordovician, Silurian, and Devonian chitinozoans. |
1979 |
| details |
Nd |
|
Nd |
Taugourdeau,P. Several systematic attributes proposed for chitinozoa. |
1981 |
| details |
Nd |
|
Nd |
Grahn,Y. Lower Silurian chitinozoa and biostratigraphy of subsurface Gotland. |
1995 |
| details |
Early Devonian |
|
Brazil(Goias) |
Paris,F. et al. A revised chitinozoan classification |
1999 |