| original |
Early Gothlandian |
|
Brazil(Para) |
da Costa,N.M. Pallachitina and Spathachitina, two new Silurian chitinozoa genera from Brazil. |
1970 |
| 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 |
Middle Llandoverian |
Early Wenlockian |
Brazil(Amazonas) |
Grahn,Y. et al. Age and correlation of the Trombetas Group, Amazonas Basin, Brazil. |
1992 |
| details |
Late Aeronian |
Telychian |
Brazil |
Paris,F. Chitinozoan biostratigraphy and palaeoecology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Nd |
|
Nd |
Paris,F. et al. A revised chitinozoan classification |
1999 |