| details |
Barremian |
Aptian |
Virginia |
Hueber,F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. |
1982 |
| details |
Barremian |
Aptian |
Virginia |
Hueber,F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. |
1982 |
| details |
Cenomanian |
|
North Dakota |
Collinson,M.E. et al. Sporopollenin exhibiting colloidal organization in spore walls. |
1993 |
| details |
Cenomanian |
|
South Dakota |
Collinson,M.E. et al. Sporopollenin exhibiting colloidal organization in spore walls. |
1993 |
| details |
Late Turonian |
Coniacian |
Greenland |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Neocomian |
|
India(Gujarat) |
Banerji,J. et al. The fossil floras of Krachchh.2. Mesozoic megaspores. |
1984 |