| details |
Devonian |
|
Canada |
Jansonius,J. et al. Some Scolecodonts in organic association from Devonian strata of Western Canada |
1974 |
| details |
Late Tremadocian |
Early Arenigian |
Canada(Newfoundland) |
Underhay,N.K. et al. Lower Ordovician scolecodonts from the Cow Head Group, Western Newfoundland. |
1995 |
| details |
Silurian |
|
Estonia |
Eriksson,M.E. An overview of Silurian scolecodonts. |
2004 |
| details |
Silurian |
|
Baltic Region |
Eriksson,M.E. An overview of Silurian scolecodonts. |
2004 |
| details |
Late Llandoverian |
Late Ludlovian |
Sweden(Gotland) |
Eriksson,M.E. An overview of Silurian scolecodonts. |
2004 |