| details |
Early Gondwana |
|
India(West Bengal) |
Maithy,P.K. Dichotomopteris, a new type of fern frond from the Lower Gondwana of India. |
1974 |
| details |
Early Gondwana |
|
India(West Bengal) |
Lele,K.M. et al. In situ spores from Lower Gondwana ferns. Their morphology and variation. |
1981 |
| details |
Early Permian |
|
China(Tibet) |
Li,X.-X. Notes on three new species of Glossopteris flora from Qubu Formation, South Xizang, (Tibet), with discussion on the age of the formation. |
1983 |
| details |
Permian |
|
India |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |