| original |
Middle Bajocian |
Early Oxfordian |
France |
Deflandre,G. et al. Schizosphaerella, a new unrecognized microfossil from the Middle and Upper Jurassic. |
1938 |
| details |
Early Tithonian |
|
W.Germany(Bavaria) |
Keupp,H. Calcisphaerulidae from the Lower Tithonian (Southern Franken-Alb, West Germany), and the taxonomic position of Pithonella Lorenze 1901 |
1978 |
| details |
Early Oxfordian |
|
France(Normandie) |
Keupp,H. et al. Calcareous dinoflagellates from Late Callovian to Oxfordian of France, (Normandy). |
1989 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |