| original |
Silurian |
|
Poland |
Kielan-Jaworowska,Z. Polychaete jaw apparatuses from the Ordovician and Silurian of Poland and a comparison with modern forms. |
1966 |
| details |
Wenlockian |
Ludlovian |
Poland |
Szaniawski,H. Jaw apparatuses of the Ordovician and Silurian polychaetes, from Nielnik borehole. |
1970 |
| details |
Silurian |
|
Europe |
Taugourdeau,P. Scolecodont dispersa |
1978 |
| details |
Late Whitcliffian |
|
Sweden |
Bergman,C.F. Silurian Paulinitid Polychaetes from Gotland |
1989 |
| details |
Sheinwoodian |
Whitcliffian |
Sweden |
Bergman,C.F. Silurian Paulinitid Polychaetes from Gotland |
1989 |
| details |
Middle Ordovician |
Late Ordovician |
Atlantic Ocean(Northwest) |
Hinte,J.E. Van et al. Palaeozoic microfossils from Orphan Knoll, northwest Atlantic Ocean. |
1995 |
| details |
Silurian |
|
Poland |
Szaniawski,H. Scolecodonts. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |