| details |
Early Paleozoic |
|
Nd |
Cramer,F.H. et al. Lower Paleozoic acritarchs. |
1979 |
| details |
Tremadocian |
|
Spain |
Fombella Blanco,M.A. Chitinizoa of the Tremadocian Oville Formation, Leon Province. |
1983 |
| original |
Early Tremadocian |
|
Algeria |
Combaz,A. A microbiota of the Tremadocian in a drilling of Hassi-Messaoud. |
1967 |
| original |
Tremadocian |
|
Algeria |
Combaz,A. On a microbiota of Tremadocian age at Hassi-Messaoud. |
1967 |
| details |
Tremadocian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Tremadocian |
|
England(Shropshire) |
Rasul,S.M. et al. The stratigraphic distribution of Tremadoc acritarchs in the Shineton Shales succession, Shropshire, England. |
1974 |
| details |
Tremadocian |
|
Algeria |
Potonie,R. Synopsis of the genera of the sporae dispersae.Part 7 |
1975 |
| details |
Early Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Acritarch assemblages in the Arenig series of the Prague Basin, Czech Republic. (In: Contributions to Acritarch and Chitinozoan Research. S.G.Molyneux and K.J.Doring, editors) |
1993 |
| details |
Nd |
|
Nd |
VavrdovЎ,M. Excystment opening and the affinities of acritarchs. |
1992 |
| details |
Late Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Early Ordovician acritarchs from the locality Myto near Rokycany (Late Arenig, Czechoslovakia) |
1990 |
| details |
Late Arenigian |
|
Czechoslovakia |
VavrdovЎ,M. Coenobial acritarchs and other palynomorphs from the Arenig/ Llanvirn boundary, Prague Basin. |
1990 |
| details |
Tremadocian |
|
Czechoslovakia |
Richardson,J.B. Paleozoic spores and pollen: Lower and Middle Palaeozoic record of terrestrial palynomorphs. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Early Tremadocian |
|
Libya |
Servais,T. et al. Value and meaning of the term acritarch. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Late Tremadocian |
|
Germany(Rostock) |
Servais,T. et al. The "messaoudensis-trifidum" acritarch assemblage (Ordovician: Tremadoc-Early Arenigian) from the subsurface of Rugen (Baltic Sea, northeast Germany). |
1997 |
| details |
Tremadocian |
|
Algeria |
Pittau Demelia,P. Tremadocian (Early Ordovician) acritarchs of the Arburese Unit southwest Sardinia, (Italy). |
1985 |
| details |
Tremadocian |
|
Tunisia |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |
| details |
Tremadocian |
|
Algeria |
Vecoli,M. et al. Palynostratigraphy of Upper Cambrian-upper Ordovician intracratonic clastic sequences, North Africa. |
1999 |