details |
Late Albian |
Early Cenomanian |
Romania |
Antonescu,E. Characteristic palynologic assemblages of some Cretaceous formations in the Metalici Mountains. |
1973 |
details |
Autunian |
|
Romania |
Antonescu,E. et al. Palynological contributions to the knowledge of the Permian from Banat. |
1976 |
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 |
details |
Late Cretaceous |
Tertiary |
Greenland |
Arnold,C.A. Microfossils from Greenland Coal. |
1932 |
details |
Late Cretaceous |
|
Greenland |
Arnold,C.A. Microfossils from Greenland Coal. |
1932 |
details |
Late Devonian |
|
Pennsylvania |
Arnold,C.A. The spores of Archaeopteris, with remarks on the affinites of the genus. |
1950 |
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 |
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 |