| original |
Rocklandian |
|
Canada(Ontario) |
Eller,E.R. Scolecodonts from the Trenton series (Ordovician) of Ontario, Quebec and New York. |
1945 |
| details |
Middle Ordovician |
|
North America |
Taugourdeau,P. Scolecodont dispersa |
1978 |
| details |
Middle Ordovician |
Late Ordovician |
Atlantic Ocean(Northwest) |
Hinte,J.E. Van et al. Palaeozoic microfossils from Orphan Knoll, northwest Atlantic Ocean. |
1995 |
| details |
Middle Ordovician |
Late Ordovician |
Atlantic(Norwegian Sea) |
Hinte,J.E. Van et al. Palaeozoic microfossils from Orphan Knoll, northwest Atlantic Ocean. |
1995 |