| details |
Early Jurassic |
Middle Jurassic |
Hungary |
Kedves,M. et al. Comparison of the spores of the genus Cicatricosisporites, R.Pot. and Gell., 1933, of Hungary and Colombia. Some problems referring to their stratigraphic significance. |
1963 |
| details |
Early Jurassic |
Middle Jurassic |
USSR |
Bolkhovitina,N.A. History of Schizaeceae Family in the geological past on the basis of spore studies. |
1962 |
| details |
Nd |
|
Scotland |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| details |
Early Liassic |
Bajocian |
England |
Bolkhovitina,N.A. Fossil and contemporaneous spores of the Family Schizaeaceae. |
1961 |
| original |
Sinemurian |
|
Scotland(Sutherland) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |
| original |
Bajocian |
|
England(Yorkshire) |
Couper,R.A. British Mesozoic microspores and pollen grains, a systematic and stratigraphic study. |
1958 |