original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |
original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |
original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |
original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |
original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |
original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |
original |
Virgilian |
|
Kansas |
Landingham,S.L.Van Summary of fossil microfloral investigations in the Bevier, Weir Pittsburg, Lower Williamsburg and Blue Mound Coals of eastern Kansas. |
1961 |