| original |
Middle Devonian |
|
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 |
Middle Devonian |
|
Canada(Ontario) |
Stauffer,C.R. Middle Devonian polychaeta from the Lake Erie District. |
1939 |
| details |
Devonian |
|
Canada(Ontario) |
Eller,E.R. A review of Hinde's Annelid jaws from the Hamilton (Devonian) a Riviere Au Sable, Ontario |
1967 |
| details |
Middle Devonian |
|
North America |
Taugourdeau,P. Scolecodont dispersa |
1978 |