| original |
Middle Eocene |
Late Eocene |
Alaska |
Bujak,J.P. Cenozoic dinoflagellate cysts and acritarchs from the Bering Sea and northern North Pacific, DSDP Leg 19 |
1984 |
| details |
Middle Eocene |
Late Eocene |
Alaska |
Jan du ChЄne,R.E. et al. New observations on the dinoflagellate cyst genus Kallosphaeridium de Coninck, 1969. |
1984 |
| details |
Nd |
|
Nd |
Bujak,J.P. et al. Late Cenozoic dinoflagellate cyst-Zonation in the Western and northern Pacific |
1986 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |