original |
Late Ashgillian |
|
Libya |
Richardson,J.B. Late Ordovician and Early Silurian cryptospores and miospores from northeast Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
original |
Rhuddanian |
|
Libya |
Richardson,J.B. Late Ordovician and Early Silurian cryptospores and miospores from northeast Libya. (In: The Subsurface Palynostratigraphy of Northeast Libya. Special Publication of the University of Garryounis, Libya. E.Arnauti et al, editors) |
1989 |
original |
Nd |
|
Nd |
Strother,P.K. A classification Schema for the Cryptospores |
1991 |