| details |
Late Telychian |
|
Sweden(Gotland) |
Grahn,Y. Lower Silurian chitinozoa and biostratigraphy of subsurface Gotland. |
1995 |
| details |
Llandoverian |
|
Sweden |
Nestor,V. Distribution of chitinozoans in the Llandovery of the Oslo region. |
1999 |
| details |
Late Llandoverian |
Early Wenlockian |
England(Shropshire) |
Verniers,J. Calibration of Chitinozoa versus graptolite biozonation in the Wenlock of Builth Wells district (Wales, U.K), compared with other areas in Avalonia and Baltica. |
1999 |
| details |
Early Wenlockian |
|
Wales(Powys) |
Verniers,J. Calibration of Chitinozoa versus graptolite biozonation in the Wenlock of Builth Wells district (Wales, U.K), compared with other areas in Avalonia and Baltica. |
1999 |
| details |
Telychian |
Sheinwoodian |
China(Kiangsu) |
Geng,L.-Y. et al. Chitinozoan biostratigraphy in China. |
2000 |