| original |
Cincinnatian |
|
Canada(Ontario) |
Eller,E.R. Scolecodonts from the Erindale, Upper Ordovician, at Streetsville Ontario |
1942 |
| original |
Cincinnatian |
|
Canada(Ontario) |
Eller,E.R. Scolecodonts from the Erindale, Upper Ordovician, at Streetsville Ontario |
1942 |
| details |
Late Ordovician |
|
Canada(Ontario) |
Eller,E.R. Scolecodonts from the Trenton series (Ordovician) of Ontario, Quebec and New York. |
1945 |
| details |
Middle Ordovician |
Late Ordovician |
North America |
Taugourdeau,P. Scolecodont dispersa |
1978 |
| details |
Nd |
|
Nd |
Szaniawski,H. Scolecodonts. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |