| details |
Late Triassic |
|
Nd |
Hughes,N.F. Mesosperm palynoloigic evidence and ancestors of angiosperms. (In: Historical Perspectives of Angiosperm Evolution.) |
1984 |
| details |
Middle Cretaceous |
|
Nd |
Hughes,N.F. Cretaceous plant taxonomy and angiosperm ancestors -Sources of difficulty |
1984 |
| details |
Aptian |
Early Albian |
Europe |
M©dus,J. Presentation of the palynostratigraphic reference material of the Middle Cretaceous of Western Europe |
1981 |
| details |
Barremian |
Late Cenomanian |
USA(Atlantic Coast) |
Doyle,J.A. Angiosperm pollen evolution and biostratigraphy of Basal Cretaceous Formations of Maryland, Delaware, and New Jersey |
1969 |
| details |
Albian |
Cenomanian |
USSR(Kazakh SSR) |
Chlonova,A.F. The devolopment of flora in Palinofloristic Provinces of the Cretaceous Period. (In: The Mesozoic of the Soviet Arctic.V.A.Zakharov and T.I.Nalnyaeva, editors) |
1983 |
| details |
Late Santonian |
|
Sweden |
Skarby,A. A microfloral sequence from the Upper Cretaceous of Southern Sweden |
1989 |