| original |
Mohawkian |
|
Minnesota |
Stauffer,C.R. Middle Ordovician polychaeta from Minnesota. |
1933 |
| details |
Nd |
|
Nd |
Kozur,H. A study on the classification of fossil Phyllodocida and Eunicida (polychaeta). |
1970 |
| details |
Ordovician |
|
India |
Viswanathiah,M.N. et al. Scolecodonts and chitinozoa from the Indian Peninsula. |
1980 |
| details |
Middle Ordovician |
Devonian |
Worldwide |
Taugourdeau,P. Importance of evolution of the dispersed scolecodonts, (Annelids) in the stocking of seas during Paleozoic times. |
1983 |
| details |
Late Ordovician |
Early Silurian |
India(Himachal Pradesh) |
Khanna,A.K. Scolecodonts from Late Ordovician-Early Silurian sequence of Spiti Valley, Tethys Himalaya. (In: Proceedings, Symposium and Technical Sessions. R.S. Tiwari, editors) |
1984 |