| details |
Silurian |
Devonian |
Africa(Sahara) |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Ordovician |
Cretaceous |
Nd |
Loeblich,A.R.,Jr. et al. Some new and revised organic-walled phytoplankton microfossil genera. |
1976 |
| details |
Early Gedinnian |
|
Spain |
Swain,F.M. Notes on Paleozoic acritarchs from the Atlantic Margins. (In: Stratigraphic Micropaleontology of Atlantic Basin and Borderlands. F.M.Swain, editor) |
1977 |
| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Gedinnian |
|
Brazil(Piaui) |
de Quadros,L.P. Biostratigraphic distribution of chitinozoa and acritarchs of the Parnaiba Basin |
1982 |
| details |
Gedinnian |
|
Brazil(Maranhao) |
Brito,I.M. et al. New occurrences of acritarchs in the Devonian of the Parnaiba Basin. (In: Paleobotanica e Palinologia na America do Sul; 1983) |
1984 |
| details |
Late Devonian |
|
Arabian Pen.States |
Al-Laboun,A.A. et al. The Devonian of the Arabian Peninsula. (In: Devonian of the World: Regional Synthesis. N.J.McMillian et al, editors) |
1988 |
| details |
Middle Llandoverian |
|
Brazil(Amazonas) |
Gray,J. Land plant spores and Ordovician-Silurian boundary. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) |
1988 |
| details |
Ludlovian |
Early Gedinnian |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Middle Telychian |
|
Paraguay |
Gray,J. et al. A new record of Early Silurian-age land plant spores from the Parana Basin, Paraguay (Malvinokaffric Realm). |
1992 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |