| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| details |
Liassic |
|
Poland |
Lundblad,B. Rhaeto-Liassic floras and their bearing on the stratigraphy of Triassic-Jurassic Rocks. |
1959 |
| details |
Liassic |
|
Sweden |
Nilsson,T. On the occurrence of a Mesozoic oil shale in Schonen. |
1958 |
| details |
Early Jurassic |
|
Sweden |
Nilsson,T. On the occurrence of a Mesozoic oil shale in Schonen. |
1958 |
| details |
Liassic |
|
Sweden |
Thomson,P.W. Evolution and dispersion of the angiosperms in the Mesophyticum. |
1953 |
| details |
Jurassic |
|
Scotland |
Just,T. Mesozoic plant microfossils and their geological significance. |
1951 |
| original |
Early Jurassic |
|
Sweden |
Erdtman,G. Did Dicotyledonous plants exist in Early Jurassic times. |
1948 |