| details |
Pleistocene |
|
Netherlands |
Florschutz,F. Azolla of the Dutch Paleocene and Pleistocene. |
1944 |
| details |
Pleistocene |
|
E.Germany(Potsdam) |
M¤dler,K.A. Azolla of the Quaternary and Tertiary and its significance for the taxonomy of older spores |
1954 |
| details |
Pleistocene |
|
Netherlands |
M¤dler,K.A. Azolla of the Quaternary and Tertiary and its significance for the taxonomy of older spores |
1954 |
| details |
Reuverian |
|
Germany |
Rein,U. Pleistocene pollen stratigraphy in Northwest Germany.1.Pollen stratigraphy of the Lower Pleistocene. |
1955 |
| details |
Pleistocene |
|
Germany |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Late Pliocene |
|
W.Germany(Niedersachsen) |
Chanda,S. Investigations of the Pliocene and Pleistocene flora and vegetational history of the Leine Valley and the southwestern foothills of the Harz Mountains, (Untereichsfeld). |
1962 |
| details |
Pleistocene |
Recent |
Canada(British Columbia) |
Hills,L.V. et al. Azolla primaeva and its phylogenetic significance. |
1967 |
| details |
Pleistocene |
|
Ireland |
Watts,W.A. Tertiary and Interglacial floras in Ireland. |
1970 |
| details |
Recent |
|
Nd |
Bergad,R.D. Ultrastructure of living and fossil Salviniaceous megaspores. |
1974 |
| details |
Paleocene |
|
Nd |
Martin,A.R.H. Somestructures in Azolla megaspores, and an anomalous Form. |
1976 |
| details |
Paleocene |
|
Nd |
Martin,A.R.H. Somestructures in Azolla megaspores, and an anomalous Form. |
1976 |
| details |
Early Pleistocene |
Hoxnian |
Belgium |
Vanhoorne,R.E. Morphology and stratigraphical position of the megaspores of three species of Azolla, occurring in Belgian Cainozoic deposits |
1984 |
| details |
Early Miocene |
|
Czechoslovakia(Bohemia) |
Buzek,C. et al. Azolla remains from the Lower Miocene of the North-Bohemian Bas Czechoslovakia |
1988 |
| details |
Aquitanian |
Messinian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Miocene |
|
E.Germany |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Late Pliocene |
Early Pleistocene |
North Sea |
Meyer,K.J. Pollen analyses of sediment cores from borehole 81/3 in Southern North Sea. (In: Studies of the Quaternary deposits in the Southern Baltic Sea.) |
1996 |
| details |
Middle Miocene |
Late Pliocene |
North Sea |
Kuhlmann,G. High resolution stratigraphy and paleoenvironmental changes in the southern North Sea during the Neogene : An integrated study of Late Cenozoic marine deposits from the northern part of the Dutch offshore area |
2004 |