original |
Chesterian |
|
Kentucky |
Hoffmeister,W.S. et al. Mississippian plant spores from the Hardinsburg Formation of Illinois and Kentucky. |
1955 |
original |
Chesterian |
|
Illinois |
Hoffmeister,W.S. et al. Mississippian plant spores from the Hardinsburg Formation of Illinois and Kentucky. |
1955 |
original |
Late Dinantian |
|
Illinois |
Chaloner,W.G. A Sporangiostrobus with Densosporites microspores |
1962 |
original |
Late Dinantian |
|
Kentucky |
Chaloner,W.G. A Sporangiostrobus with Densosporites microspores |
1962 |
original |
Nd |
|
Nd |
Byvsheva,T.V. Palynological character and stratigraphical arrangement of the Bobrikov horizon as found in the Lower Carboniferous Period of the Volga-Urals Region. |
1967 |