| original |
Kimmeridgian |
|
France(Jura) |
Deflandre,G. The Kimmeridgian microplankton of Orbagnoux and the origin of naturally sulfurous oils. |
1941 |
| details |
Kimmeridgian |
|
France |
Deflandre,G. Systematics of the Hystrichospheres: With the acceptance of the Cymatiosphaera O.Wetzel. |
1954 |
| details |
Late Kimmeridgian |
|
England |
Downie,C. Microplankton from the Kimeridge Clay. |
1957 |
| details |
Nd |
|
Nd |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Middle Ordovician |
|
Finland |
Tynni,R. Ordovician hystrichospheres and chitinozoans in limestone from the Bothnian Sea. |
1975 |
| details |
Kimmeridgian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Nd |
|
Nd |
Sarjeant,W.A.S. et al. The Micrhystridium and Veryhachium Complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): A taxonomic reconsideration. |
1994 |