| details |
Tortonian |
|
Canada(Eastern Offshore) |
Lentin,J.K. et al. The stratigraphic importance of species of Sumatradinium, Barssidinium, and Erymnodinium, Neogene dinoflagellate genera from offshore eastern Canada. |
1994 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |
| original |
Late Miocene |
|
Maryland |
de Verteuil,L. et al. Miocene Protoperidiniacean dinoflagellate cysts from the Maryland and Virginia Coastal Plain |
1992 |
| details |
Late Miocene |
|
Maryland |
Lentin,J.K. et al. The stratigraphic importance of species of Sumatradinium, Barssidinium, and Erymnodinium, Neogene dinoflagellate genera from offshore eastern Canada. |
1994 |