| details |
Early Triassic |
|
West Pakistan |
Sarjeant,W.A.S. Acritarchs and the Permian - Triassic Boundary. |
1971 |
| 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 |
Sarjeant,W.A.S. The Hystrichospheres. A review and discussion. |
1961 |
| details |
Devonian |
|
Nd |
Sarjeant,W.A.S. Recent developments in the application of fossilised planktonic organisms to problems of stratigraphy and Palaeoecoogy. |
1970 |
| details |
Givetian |
|
Iowa |
Sanders,R.B. Devonian spores of the Cedar Valley Coal of Iowa, USA. |
1967 |
| details |
Frasnian |
|
Montana |
Sandberg,C.A. et al. Comparison between conodont zonations and spore assemblages at the Devonian-Carboniferous boundary in the Western and Central United States and in Europe |
1972 |
| details |
Frasnian |
|
W.Germany(Rhineland) |
Sandberg,C.A. et al. Comparison between conodont zonations and spore assemblages at the Devonian-Carboniferous boundary in the Western and Central United States and in Europe |
1972 |
| details |
Middle Carboniferous |
Late Carboniferous |
Argentina(Salta) |
Salfity,J.A. et al. Tarija Basin. (In: The Carboniferous System in the Republic of Argentina. S.Archangelsky, editor) |
1987 |
| details |
Late Cambrian |
|
USSR(Siberia) |
Rudavskaya,V.A. Hystrichosphaerida of the Paleozoic Era |
1965 |
| details |
Cambrian |
|
USSR(Baltic) |
Rudavskaya,V.A. Hystrichosphaerida of the Paleozoic Era |
1965 |
| details |
Ordovician |
Permian |
Nd |
Rudavskaya,V.A. Hystrichosphaerida of the Paleozoic Era |
1965 |
| details |
Middle Cambrian |
|
Baltic |
Rudavskaya,V.A. Palaeozoic Hystrichospheres. |
1969 |
| details |
Carboniferous |
|
Nd |
Rudavskaya,V.A. Palaeozoic Hystrichospheres. |
1969 |
| details |
Permian |
|
Nd |
Rudavskaya,V.A. Palaeozoic Hystrichospheres. |
1969 |
| details |
Early Paleozoic |
|
Ghana |
Riegel,W. et al. Lower Paleozoic acritarchs of the Sekondi Series of Ghana (West Africa). |
1980 |
| details |
Early Devonian |
|
Tennessee |
Reaugh,A.B. et al. Acritarchs and chitinozoans from the Lower Devonian (Helderbergian) Birdsong Shale, Decatur County, Tennessee. |
1977 |
| details |
Emsian |
Early Eifelian |
Georgia |
Ravn,R.L. et al. Lower Devonian spores and acritarchs from the subsurface of Southwestern Georgia. |
1984 |