| original |
Wenlockian |
|
Canada(Ontario) |
Hinde,G.J. On Annelid jaws from the Cambro-Silurian, Silurian and Devonian Formations in Canada and from the Lower Carboniferous in Scotland |
1879 |
| details |
Wenlockian |
|
Canada(Ontario) |
Eller,E.R. A review of Hinde's Annelid jaws from the Silurian at Dundas, Ontario |
1967 |
| details |
Silurian |
|
Canada(Ontario) |
Eller,E.R. A review of Hinde's Annelid jaws from the Silurian at Dundas, Ontario |
1967 |
| details |
Middle Gothlandian |
|
North America |
Taugourdeau,P. Scolecodont dispersa |
1978 |
| details |
Nd |
|
Nd |
Bergman,C.F. Silurian Paulinitid Polychaetes from Gotland |
1989 |