| details |
Late Aptian |
|
W.Germany(Schleswig) |
Eisenack,A. et al. Katalog der Fossilen Dinoflagellaten, Hystrichosph¤ren und Verwandten Mikrofossilien. Band I. Dinoflagellaten. 2.Erg¤nzungslieferung.III + 215p |
1971 |
| details |
Late Aptian |
|
W.Germany(Schleswig) |
Davey,R.J. et al. The genera Hystrichosphaera and Achomosphaera. (In: Studies on Mesozoic and Cainozoic Dinoflagellate Cysts. R.J.Davey, C.Downie, W.A.S.Sarjeant and G.L.Williams) |
1966 |
| details |
Late Aptian |
|
W.Germany(Schleswig) |
Duxbury,S. A study of dinoflagellate cysts and acritarchs from the Lower Greensand (Aptian to Lower Albian) of the Isle of Wight,
southern England. |
1983 |
| details |
Late Berriasian |
Aptian |
Worldwide |
Williams,G.L. et al. Mesozoic and Cenozoic dinoflagellates. (In:Plankton Stratigraphy. H.M.Bolli et al, editor) |
1985 |