| original |
Middle Siegenian |
Emsian |
Spain |
Cramer,F.H. Microplankton from three Palaeozoic formations in the Province of Leon, northwest Spain. |
1964 |
| details |
Ludlovian |
|
France |
Paris,F. et al. Discovery of a rich microbiota of acritarchs and chitinozoans in the formations of the Median Syncline (Armoricain Massive, environs of Saint-Medard-sur-Ille). Presence of spores and scolecodonts. |
1969 |
| details |
Ludlovian |
|
France |
Paris,F. et al. Discovery of a rich microbiota of acritarchs and chitinozoans in the formations of the Median Syncline (Armoricain Massive, environs of Saint-Medard-sur-Ille). Presence of spores and scolecodonts. |
1969 |
| details |
Silurian |
|
France(Maine-et-Loire) |
Moreau-Benoit,A. Palynologic study of the Shale-Sand Formations associated with the Chalonnes Limestone of the Saint-Charles and Tarare Qarries at Chaudefonds (Maine-et-Loire). |
1969 |
| details |
Ludlovian |
|
England(Shropshire) |
Lister,T.R. The acritarchs and chitinozoa from the Wenlockian and Ludlowvian series of the Ludlovian and Millichope areas, Shrophire. |
1970 |
| details |
Middle Siegenian |
Emsian |
Spain |
Lister,T.R. The acritarchs and chitinozoa from the Wenlockian and Ludlowvian series of the Ludlovian and Millichope areas, Shrophire. |
1970 |
| details |
Late Ordovician |
|
USSR(Russian Platform) |
Andreeva,E.M. Guide complexes of plant microfossils of the Upper Proterozoic and lower deposits of the Russian Platform. (In: Palynology, Method and Stratigraphy) |
1973 |
| details |
Middle Siegenian |
Emsian |
Spain |
Andreeva,E.M. Guide complexes of plant microfossils of the Upper Proterozoic and lower deposits of the Russian Platform. (In: Palynology, Method and Stratigraphy) |
1973 |
| details |
Ordovician |
Silurian |
India(Himachal Pradesh) |
Khanna,A.K. et al. Reappraisal of stratigraphic status of Pin Dolomite |
1983 |
| details |
Middle Ordovician |
Early Gothlandian |
India(Himachal Pradesh) |
Khanna,A.K. Lower Palaeozoic acritarchs from Pin Dolomite, Tethys Himalaya. (In: Proceedings, Symposium and Technical Sessions. R.S. Tiwari, editors) |
1984 |
| details |
Middle Siegenian |
Emsian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |