| details |
Late Hauterivian |
Middle Barremian |
England(Yorkshire) |
Neale,J.W. et al. Microplankton from the Speeton Clay of Yorkshire. |
1962 |
| original |
Late Hauterivian |
Middle Barremian |
England(Yorkshire) |
Lentin,J.K. et al. Fossil dinoflagellates: index to genera and species. |
1973 |
| details |
Nd |
|
Nd |
Lentin,J.K. et al. Fossil dinoflagellates: Index to genera and species, 1981 edition. |
1981 |
| details |
Nd |
|
Nd |
Below,R. Dinoflagellate cysts from the Platylenticeras Strata, (Lower Middle Valanginian), of the Schnepper Brick Clay Pit at Suddendorf in Northwest Germany. |
1981 |
| details |
Nd |
|
Nd |
Lentin,J.K. et al. Fossil dinoflagellates: index to genera and species, 1985 edition. |
1985 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |