| original |
Aptian |
Early Albian |
India(Madras) |
Venkatachala,B.S. et al. An assemblage of dinoflagellate cysts and acritarchs from Dalmiapuram Grey Shale, Cauvery Basin, Tamil Nadu, India. |
1980 |
| original |
Late Kimmeridgian |
|
Nd |
Sarjeant,W.A.S. A guide to the identification of Jurassic dinoflagellate cysts. |
1978 |
| original |
Late Kimmeridgian |
|
England |
Gitmez,G.U. et al. Dinoflagellate cysts and acritarchs from the Kimmeridgian, (Upper Jurassic), of England, Scotland and France. |
1972 |
| original |
Albian |
|
Canada(Alberta) |
Brideaux,W.W. Recurrent species Groupings in fossil Micro-Plankton assemblages |
1971 |