| original |
Danian |
|
Europe |
Wetzel,W. Contribution to the knowledge of Danian marine plankton. |
1952 |
| details |
Nd |
|
Nd |
Servais,T. Some considerations on acritarch classification |
1996 |
| details |
Late Cambrian |
Early Gothlandian |
India(Madhya Pradesh) |
Salujha,S.K. et al. Palynology of the Vindhyans and their equivalents in Peninsular India. |
1972 |
| details |
Early Gothlandian |
|
India(Rajasthan) |
Salujha,S.K. et al. Palynology of the Vindhyans and their equivalents in Peninsular India. |
1972 |
| details |
Neocomian |
Aptian |
India(Rajasthan) |
Banerjee,D. Cretaceous microflora from Rajasthan, India. |
1972 |
| details |
Eocene |
Oligocene |
India(Assam) |
Banerjee,D. et al. Hystrichosphaerids in the Tertiary Formations of Assam and Tripura. |
1972 |
| details |
Eocene |
Oligocene |
India(Tripura) |
Banerjee,D. et al. Hystrichosphaerids in the Tertiary Formations of Assam and Tripura. |
1972 |
| details |
Berriasian |
Valanginian |
USSR(WSL) |
Shirokova,Y.F. Palynological characteristic of the Frolovskaya Suite, (Late Cretaceous). |
1973 |
| details |
Early Gothlandian |
Late Tertiary |
Nd |
Downie,C. Observations on the nature of the acritarchs |
1973 |
| details |
Nd |
|
Nd |
M¤dler,K.A. Hystrichophyta and acritarchs |
1967 |
| details |
Cenomanian |
Turonian |
USSR(WSL) |
Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. |
1971 |
| details |
Kimmeridgian |
|
USSR(WSL) |
Ilina,V.U. Palynological characteristics of Jurassic Layers of Siberia. |
1971 |
| details |
Late Jurassic |
|
USSR(Yakut ASSR) |
Ilina,V.U. Palynological characteristics of Jurassic Layers of Siberia. |
1971 |
| details |
Late Frasnian |
Early Famennian |
Belgium |
Bouckaert,J. et al. The Frasnian-Famennian boundary in Belgium |
1972 |
| details |
Nd |
|
Nd |
Loeblich,A.R.,Jr. et al. Index to the genera, subgenera, and sections of the Pyrrhophyta. |
1966 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. The Hystrichospheres. A review and discussion. |
1961 |
| details |
Nd |
|
Nd |
Brito,I.M. The acritarchs |
1967 |