| original |
Middle Devonian |
|
Canada(Ontario) |
Stauffer,C.R. Middle Devonian polychaeta from the Lake Erie District. |
1939 |
| details |
Wenlockian |
|
Africa(Sahara) |
Taugourdeau,P. The Scolecodonts of Silurian, Devonian and Carboniferous of the Saharian Probes, stratigraphy and systematics |
1968 |
| details |
Devonian |
|
India(Uttar Pradesh) |
Tewari,B.S. et al. Discovery of Devonian Scolecodonts in the Lesser Himalayan zone of Garhwal, Uttar Pradesh. |
1976 |
| details |
Middle Devonian |
|
North America |
Taugourdeau,P. Scolecodont dispersa |
1978 |
| details |
Nd |
|
Nd |
Bergman,C.F. Silurian Paulinitid Polychaetes from Gotland |
1989 |