| details |
Middle Gothlandian |
|
Europe |
Taugourdeau,P. Scolecodont dispersa |
1978 |
| details |
Richmondian |
|
Ohio |
Eriksson,M. Late Ordovician polychaetaspid polychaete annelids from the type Cincinnatian region, USA.(In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| details |
Richmondian |
|
Indiana |
Eriksson,M. Late Ordovician polychaetaspid polychaete annelids from the type Cincinnatian region, USA.(In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) |
2003 |
| original |
Wenlockian |
|
England(Shropshire) |
Hinde,G.J. On Annelid jaws from the Wenlock and Ludlow formations of the west of England. |
1880 |