| details |
Late Albian |
|
Delaware |
Walker,J.W. et al. Ultrastructure of Lower Cretaceous angiosperm pollen and the origin and Early evolution of Flowering plants |
1984 |
| details |
Late Aptian |
|
Maryland |
Upchurch,G.R. et al. Paleoecology of the Conifers Frenlopsis and Pseudofrenelopsis (Cheirolepidiaceae) from the Cretaceous Potomac Group of Maryland and Virginia. (In: Geobotany II -Edited by R.C.Romans) |
1981 |
| details |
Late Aptian |
|
Canada(Alberta) |
Burden,E.T. Terrestrial palynomorph biostratigraphy of the Lower Part of the Mannville Group, (Lower Cretaceous) Alberta and Montana. (In: The Mesozoic of Middle North America. D.F.Stott and D.J.Glass, editors) |
1984 |
| details |
Late Albian |
|
Kansas |
Ward,J.V. Early Cretaceous angiosperm pollen from the Cheyenne and Kiowa Formations, (Albian) of Kansas, USA. |
1986 |
| details |
Late Albian |
|
Portugal |
Berthou,P.Y. et al. The contribution of palynology to the stratigraphy of the Middle to Late Cretaceous West Portugal Basin. |
1981 |
| details |
Albian |
|
Portugal |
Chapman,J.L. Practical difficulties in the application of the species concept in Albian angiosperm pollen. (In: Studies in Palaeobotany and Palynology in Honor of N.F.Hughes. D.J.Batten and D.E.G.Briggs, editors) |
1986 |
| details |
Nd |
|
Nd |
Vasanthy,G. et al. The evolution of angiospermid pollen characteristics: Conjectures and Queries. (In: Proceeding of the Symposium on the Vistas in Indian Palaeobotany. K.P.Jain and R.S.Tiwari, editors) |
1990 |
| original |
Cenomanian |
|
Minnesota |
Pierce,R.L. Lower Upper Cretaceous plant microfossils from Minnesota. |
1961 |
| details |
Late Cretaceous |
|
Minnesota |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| original |
Albian |
|
Nd |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1962 |
| details |
Late Albian |
|
Maryland |
Kedves,M. Transmission electron microscopy of the fossil angiosperm exines. |
1990 |
| details |
Early Albian |
|
Maryland |
Doyle,J.A. Angiosperm pollen and correlation of Potomac megafossil localities. |
1974 |
| details |
Early Cenomanian |
|
Virginia |
Robbins,E.I. et al. Palynological and stratigraphic investigations of four deep wells in the Salisbury Embayment of the Atlantic Coastal Plain. |
1975 |
| details |
Early Cretaceous |
|
USA(Atlantic Coast.Pl.) |
Doyle,J.A. et al. Pollen and leaves from the Mid-Cretaceous Potomoc Group and their bearing on early angiosperm evolution. (In: Origin and Early Evolution of Angiosperms.C.B.Beck, editor) |
1976 |
| details |
Aptian |
|
Gabon |
Doyle,J.A. et al. Angiosperm pollen from the Pre-Albian Lower Cretaceous of equatorial Africa. |
1977 |
| details |
Aptian |
|
India(Bihar) |
Tiwari,R.S. et al. Palynological assemblage and absolute age relationship of the Intertrappean Beds in the Rajmahal Basin, India. |
1995 |
| details |
Albian |
|
Nd |
Doyle,J.A. et al. Diversification of early angiosperm pollen in cladistic context. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |