| details |
Eltonian |
Early Bringewoodian |
England(Shropshire) |
Lister,T.R. et al. The stratigraphic distribution of the acritarchs in the Ludlow succession at Ludlow. |
1974 |
| details |
Wenlockian |
|
USSR(Tuvinskaya A.O.) |
Sheshegova,L.I. Phytoplankton of the Silurian from the Tuva, (the section of the "Elegest"). |
1975 |
| details |
Late Ludlovian |
|
Argentina(San Juan) |
Rubinstein,C.V. Acritarchs from the Upper Silurian of San Juan, Argentina: Biostratigraphy and palaeobiogeography. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Middle Rhuddanian |
|
Saudi Arabia |
Le H©riss©,A. Evolution of the biodiversity : The acritarch recovery in the Early Silurian of Saudi Arabia. |
1998 |