| original |
Middle Ordovician |
|
USSR(Kazakh SSR) |
Timofeev,B.V. A small palyeontological theodolite table. (A new method of research into fossil microplankton). (In: Collected Palaentological Papers) |
1962 |
| details |
Middle Ordovician |
|
USSR |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Middle Ordovician |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |