| details |
Oligocene |
|
India(Assam) |
Baksi,S.K. Palynological investigation of Simsang River Tertiaries, South Shillong Front, Assam. |
1962 |
| details |
Tertiary |
|
Iceland |
Askelsson,E.J. Geology of Iceland 4.On some Tertiary plants. |
1956 |
| details |
Dogger |
|
Afghanistan |
Ashraf,A.R. The Rhaetian-Jurassic flora of Iran and Afghanistan. 3. The microflora of the Rhaetian to Lower Cretaceous deposits of northern Afghanistan. |
1977 |
| details |
Late Triassic |
|
New Mexico |
Ash,S.R. Ferns from the Chinle Formation in the Fort Wingate, New Mexico area. |
1970 |
| details |
Late Triassic |
|
New Mexico |
Ash,S.R. Ferns from the Chinle Formation in the Fort Wingate, New Mexico area. |
1970 |
| details |
Late Triassic |
|
New Mexico |
Ash,S.R. Ferns from the Chinle Formation in the Fort Wingate, New Mexico area. |
1970 |
| details |
Late Triassic |
|
New Mexico |
Ash,S.R. Ferns from the Chinle Formation in the Fort Wingate, New Mexico area. |
1970 |
| details |
Late Triassic |
|
New Mexico |
Ash,S.R. Ferns from the Chinle Formation in the Fort Wingate, New Mexico area. |
1970 |
| details |
Late Triassic |
|
New Mexico |
Ash,S.R. Ferns from the Chinle Formation in the Fort Wingate, New Mexico area. |
1970 |
| details |
Middle Maastrichtian |
Late Maastrichtian |
North Dakota |
Artzner,D.G. Palynology of a Volcanic Ash in the Fox Hills Formation, (Maestrichtian), of Emmons, Morton, and Sioux Counties, North Dakota. |
1974 |
| details |
Middle Maastrichtian |
Late Maastrichtian |
North Dakota |
Artzner,D.G. Palynology of a Volcanic Ash in the Fox Hills Formation, (Maestrichtian), of Emmons, Morton, and Sioux Counties, North Dakota. |
1974 |
| details |
Middle Maastrichtian |
Late Maastrichtian |
North Dakota |
Artzner,D.G. Palynology of a Volcanic Ash in the Fox Hills Formation, (Maestrichtian), of Emmons, Morton, and Sioux Counties, North Dakota. |
1974 |
| details |
Middle Maastrichtian |
Late Maastrichtian |
North Dakota |
Artzner,D.G. Palynology of a Volcanic Ash in the Fox Hills Formation, (Maestrichtian), of Emmons, Morton, and Sioux Counties, North Dakota. |
1974 |
| details |
Devonian |
|
Canada(Quebec) |
Arnold,C.A. Observations on fossil plants from the Devonian of eastern North America I. plant remains from Scaumenac Bay,Quebec |
1936 |
| original |
Late Triassic |
|
Utah |
Arnold,C.A. Fossil ferns of the Matoniaceae from North America. |
1956 |
| original |
Oligocene |
|
Canada(British Columbia) |
Arnold,C.A. A Tertiary Azolla from British Columbia. |
1955 |
| original |
Late Eocene |
|
Oregon |
Arnold,C.A. et al. The fern genus Acrostichum in the Eocene Clarno Formation of Oregon. |
1963 |