| original |
Early Gothlandian |
|
USSR(Leningrad) |
Naumova,S.N. Spores of the Lower Silurian. |
1950 |
| original |
Early Gothlandian |
|
USSR(Estonian SSR) |
Naumova,S.N. Spores of the Lower Silurian. |
1950 |
| details |
Late Cambrian |
|
USSR(Russian Platform) |
Andreeva,E.M. Spore complexes of the Upper Proterozoic and Lower Paleozoic of the Russian Platform. |
1960 |
| details |
Ordovician |
|
USSR(Russian Platform) |
Andreeva,E.M. Spore complexes of the Upper Proterozoic and Lower Paleozoic of the Russian Platform. |
1960 |
| details |
Ordovician |
|
USSR(Russian Platform) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Early Gothlandian |
|
USSR(Leningrad) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Early Gothlandian |
|
USSR(Leningrad) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Paalits,I. et al. Taxonomic discussion of the genus Trichosphaeridium, Timofeev,1966, and related genera. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |
| details |
Early Gothlandian |
|
USSR(Leningrad) |
Paalits,I. et al. Taxonomic discussion of the genus Trichosphaeridium, Timofeev,1966, and related genera. (In: Commision Internationale de microflore du Paleozoique (CIMP) Acritarch Subcommision: O.Fatka and T.Servais, editors) |
1996 |