كتب ذات صلة

An annotated synopsis of paleozoic fossil spores : and the definition of generic groups

• Some fern-like fructifications and their spores from the Mazon Creek compression flora of Illinois (Pennsylvanian)
  المؤلفون: Pfefferkorn, Hermann W. ,  Peppers, Russel A.
• Palynology and petrography of a Middle Devonian coal in Illinois
  المؤلفون: Peppers, Russel A. ,  Damberger, H. H.

• Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois
  المؤلفون: Winslow, Marcia R.
• Screening of selected fluoroaromatic compounds for use as agrichemicals, I
  المؤلفون: Shiley, R. H.
• Pennsylvanian tree fern compressions Caulopteris, Megaphyton, and Artisophyton gen. nov. in Illinois
  المؤلفون: Pfefferkorn, Hermann W.