| details |
Late Callovian |
|
Baltic |
Sarjeant,W.A.S. et al. The classification of dinoflagellate cysts above generic level, and a discussion and revisions. (In: Symposium on Stratigraphic Palynology) |
1974 |
| details |
Late Callovian |
|
Baltic |
Norris,G. Phylogeny and a revised Supre-Generic classification for Triassic-Quaternary organic-walled dinoflagellte cysts (Pyrrhophyta); Part 2. Families and Suborders of fossil dinoflagellates. |
1978 |
| details |
Late Callovian |
|
Baltic |
Norris,G. Phylogeny and a revised suprageneric classification for Triassic - Quaternary organic-walled dinoflagellate cysts, (pyrrhophyta) Part I. Cyst terminology and assessment of previous classifications. |
1978 |