| details |
Aptian |
|
Mongolian Republic |
Krassilov,V.A. Early Cretaceous flora of Mongolia. |
1982 |
| details |
Aptian |
|
Mongolian Republic |
Krassilov,V.A. Early Cretaceous flora of Mongolia. |
1982 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. A Heterosporous species of Bowmanites from the Michigan Coal Basin |
1944 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. A Heterosporous species of Bowmanites from the Michigan Coal Basin |
1944 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. A Heterosporous species of Bowmanites from the Michigan Coal Basin |
1944 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. A Heterosporous species of Bowmanites from the Michigan Coal Basin |
1944 |
| details |
Middle Pennsylvanian |
|
Kentucky |
Leisman,G.A. et al. Megasporangiate and microsporangiate cones of Achlamydocarpon varius, from the Middle Pennsylvanian. |
1979 |
| details |
Desmoinesian |
|
Kansas |
Leisman,G.A. et al. On the reproductive organs of Lepidodendron serratum Felix. |
1974 |
| details |
Early Gondwana |
|
India(Orissa) |
Pant,D.D. et al. On Walkomiellospermum indicum, gen.et sp.nov., seed-like bodies and alete megaspores from Talchir Coalfield, India. |
1963 |
| details |
Permian |
|
India(Maharashtra) |
Agashe,S.N. Megaspores from the Permian Coal Seam, (Lower Gondwana), of Umrer Colliery, Nagpur District, Maharashtra, India. |
1979 |
| details |
Middle Jurassic |
Late Jurassic |
India(Gujarat) |
Bose,M.N. et al. The fossil floras of Kachchh. 1. Mesozoic megafossils. |
1984 |
| original |
Aquitanian |
|
India(Gujarat) |
Kar,R.K. Azolla aglochidia, sp.nov. A new species of Azolla from Khari Nadi Formation, (Miocene) of Kutch, India and its biostratigraphic importance. |
1979 |
| details |
Early Gondwana |
|
India(Bihar) |
Trivedi,B.S. Megaspores from Lower Gondwana of Singrauli Coalfield, District Mirzapur. |
1950 |
| details |
Jurassic |
Early Cretaceous |
India |
Dev,S. Evaluation of in situ, spores and pollen grains from the Jurassic-Cretaceous fructifications. |
1979 |
| details |
Chesterian |
Pennsylvanian |
Illinois |
Winslow,M.R. Plant megaspores from Illinois Coals. |
1957 |
| details |
Chesterian |
Early Pennsylvanian |
Illinois |
Winslow,M.R. Upper Mississippian-Lower Pennsylvanian megaspores |
1957 |
| details |
Early Triassic |
|
Greenland |
Lundblad,B. A Selaginelloid Strobilus from East Greenland (Triassic) |
1948 |