| original |
Middle Barremian |
Late Barremian |
England(Yorkshire) |
Duxbury,S. Barremian phytoplankton from Speeton, East Yorkshire. |
1980 |
| details |
Middle Barremian |
Late Barremian |
England(Yorkshire) |
Lentin,J.K. et al. Fossil dinoflagellates: Index to genera and species, 1981 edition. |
1981 |
| details |
Middle Barremian |
Late Barremian |
England(Yorkshire) |
Sarjeant,W.A.S. The dinoflagellate cysts of the Gonyaulacysta Group: A morphological and taxomomic restudy. |
1982 |
| details |
Middle Barremian |
Late Barremian |
England(Yorkshire) |
Helenes,J. Morphological analysis of Mesozoic - Cenozoic Cribroperidinium (Dinophyceae), and taxonomic implications. |
1984 |
| details |
Nd |
|
Nd |
Williams,G.L. et al. The Lentin and Williams Index of Fossil Dinoflagellates.1998 Edition. |
1998 |