Includes bibliographical references."Reprinted from the Journal of geology, vol. 50, no. 3, 1947.
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin...
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin...
By maceration of coal it is possible to extract microfossils that consist of various plant parts. Th...
A stratigraphic study of the plant microfossils m the Iowa Pennsylvanian coals by the maceration met...
A stratigraphic study of the plant microfossils m the Iowa Pennsylvanian coals by the maceration met...
A stratigraphic study of the plant microfossils m the Iowa Pennsylvanian coals by the maceration met...
Spores and coal balls from profiles in the Springfield Coal of the Illinois Basin were analysed to d...
Spores and coal balls from profiles in the Springfield Coal of the Illinois Basin were analysed to d...
Much work has been done with the microfossils of Quaternary peat and silt deposits in Europe and Nor...
Much work has been done with the microfossils of Quaternary peat and silt deposits in Europe and Nor...
Abundant data from spore studies of the Colchester (no. 2) Coal Member and from investigations of pl...
Abundant data from spore studies of the Colchester (no. 2) Coal Member and from investigations of pl...
This report is concerned with a description and classification of spores found in the commercially ...
Includes bibliographical references."Reprinted from the Journal of geology, vol. 50, no. 3, 1947.
Specimens of Block coal collected during the past 5 years for miospore analysis have aroused the cur...
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin...
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin...
By maceration of coal it is possible to extract microfossils that consist of various plant parts. Th...
A stratigraphic study of the plant microfossils m the Iowa Pennsylvanian coals by the maceration met...
A stratigraphic study of the plant microfossils m the Iowa Pennsylvanian coals by the maceration met...
A stratigraphic study of the plant microfossils m the Iowa Pennsylvanian coals by the maceration met...
Spores and coal balls from profiles in the Springfield Coal of the Illinois Basin were analysed to d...
Spores and coal balls from profiles in the Springfield Coal of the Illinois Basin were analysed to d...
Much work has been done with the microfossils of Quaternary peat and silt deposits in Europe and Nor...
Much work has been done with the microfossils of Quaternary peat and silt deposits in Europe and Nor...
Abundant data from spore studies of the Colchester (no. 2) Coal Member and from investigations of pl...
Abundant data from spore studies of the Colchester (no. 2) Coal Member and from investigations of pl...
This report is concerned with a description and classification of spores found in the commercially ...
Includes bibliographical references."Reprinted from the Journal of geology, vol. 50, no. 3, 1947.
Specimens of Block coal collected during the past 5 years for miospore analysis have aroused the cur...
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin...
Palynological correlation is made between Atokan and lower Desmoinesian strata in the Illinois basin...
By maceration of coal it is possible to extract microfossils that consist of various plant parts. Th...