| original |
Middle Cambrian |
|
Spain |
Cramer,F.H. et al. Acritarchs from the Upper Middle Cambrian Oville Formation of Leon, Northwestern Spain. |
1972 |
| details |
Middle Cambrian |
|
Spain |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Late Acadian |
|
Nd |
Diez,M.D.C.R. et al. Range chart of selected Lower Paleozoic acritarch Taxa. 2: Index to Parts 1 and 2. |
1977 |
| details |
Late Cambrian |
Early Tremadocian |
Spain |
Fombella,M.A. Palynology of the Oville Formation, north and south Cantabrian Mountains. |
1978 |
| details |
Late Cambrian |
|
Canada(Newfoundland) |
Martin,F. et al. Middle and Upper Cambrian and Lower Ordovician acritarchs from Random Island, Eastern Newfoundland. |
1981 |
| details |
Middle Cambrian |
|
Turkey |
Erkmen,U. et al. Cambrian acritarchs from the Sosink Formation in southeast Turkey. |
1981 |
| details |
Middle Cambrian |
|
Spain |
Martin,F. et al. Middle and Upper Cambrian and Lower Ordovician acritarchs from Random Island, Eastern Newfoundland. |
1981 |
| details |
Late Cambrian |
Tremadocian |
Spain |
Fombella Blanco,M.A. Palynological determination of the Tremadocian in locality of Verdiago, Leon Province, the North of Spain |
1982 |
| details |
Tremadocian |
Early Arenigian |
Italy(Sardinia) |
Pittau Demelia,P. Tremadocian (Early Ordovician) acritarchs of the Arburese Unit southwest Sardinia, (Italy). |
1985 |
| details |
Late Cambrian |
|
Spain |
Fombella Blanco,M.A. Resemblances and differences between the palynological associations of Upper Cambrian age in the northwest of Spain, (Vozmediano), and North of Africa. |
1987 |
| details |
Middle Cambrian |
|
USSR(Kalinin) |
Volkova,N.A. Middle and Upper Cambrian acritarchs in the East-European Platform |
1990 |
| details |
Middle Cambrian |
|
Spain |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Di Milia,A. Upper Cambrian acritarchs from the Solanas Sandstone Formation, Central Sardinia, Italy. |
1991 |
| details |
Late Cambrian |
|
Iran |
Ghavidel-Syooki,M. Palynological study of Paleozoic sediments of the Chal-I-Sheh area, Southwestern Iran |
1993 |
| details |
Middle Cambrian |
|
Spain |
Vanguestaine,M. The Late Cambrian acritarch Cristallinium randomense: morphology, taxonomy and stratigraphical extension |
2002 |