Author Institution: Department of Botany, Ohio UniversityThe recent (1975) discovery of coal-ball petrifactions in the Duquesne and Ames coals of the Conemaugh Group provides an opportunity to make detailed studies of abundant and well preserved Pennsylvanian age fossil plants. Material from these beds was collected at a single location west of Steubenville, Ohio. Remains assignable to all the major groups of coal swamp plants were present, with the psaroniaceous tree ferns and medullosan seed ferns most abundantly represented. To date, 50 distinct taxa of plant remains have been discovered
Samples of coal were secured at six inch intervals through two brown coal deposits near Wamsutter, W...
The primary objective of this study is to reconstruct the paleofloristics of an unnamed shale of low...
177-204https://deepblue.lib.umich.edu/bitstream/2027.42/48204/4/ID043.pdfhttps://deepblue.lib.umich....
Author Institution: Department of Botany, Ohio State UniversityStructurally preserved vascular plant...
Author Institution: Department of Botany, Ohio UniversityThe Upper Pennsylvanian (Conemaugh Group) D...
158 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.The objective of this researc...
Author Institution: Department of Botany, Ohio UniversityTwo compression floras have been discovered...
Author Institution: Department of Geology and Mineralogy, Ohio State UniversityThe calcareous concre...
Macro-fossil specimens were collected from eight evenly spaced locations along the face of a one hun...
Abundant data from spore studies of the Colchester (no. 2) Coal Member and from investigations of pl...
198 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984.Cordaites are extinct conifer...
Spores and coal balls from profiles in the Springfield Coal of the Illinois Basin were analysed to d...
Carbon allocation to different tissues and organs of Late Pennsylvanian-aged coal-swamp plants was d...
Recent analysis of an abundant coal flora dislodged from coalballs,\u27\u27 or sulphur balls of t...
Paleobotany is the study of fossilized plant material, and includes the study of fossilized spores a...
Samples of coal were secured at six inch intervals through two brown coal deposits near Wamsutter, W...
The primary objective of this study is to reconstruct the paleofloristics of an unnamed shale of low...
177-204https://deepblue.lib.umich.edu/bitstream/2027.42/48204/4/ID043.pdfhttps://deepblue.lib.umich....
Author Institution: Department of Botany, Ohio State UniversityStructurally preserved vascular plant...
Author Institution: Department of Botany, Ohio UniversityThe Upper Pennsylvanian (Conemaugh Group) D...
158 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.The objective of this researc...
Author Institution: Department of Botany, Ohio UniversityTwo compression floras have been discovered...
Author Institution: Department of Geology and Mineralogy, Ohio State UniversityThe calcareous concre...
Macro-fossil specimens were collected from eight evenly spaced locations along the face of a one hun...
Abundant data from spore studies of the Colchester (no. 2) Coal Member and from investigations of pl...
198 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984.Cordaites are extinct conifer...
Spores and coal balls from profiles in the Springfield Coal of the Illinois Basin were analysed to d...
Carbon allocation to different tissues and organs of Late Pennsylvanian-aged coal-swamp plants was d...
Recent analysis of an abundant coal flora dislodged from coalballs,\u27\u27 or sulphur balls of t...
Paleobotany is the study of fossilized plant material, and includes the study of fossilized spores a...
Samples of coal were secured at six inch intervals through two brown coal deposits near Wamsutter, W...
The primary objective of this study is to reconstruct the paleofloristics of an unnamed shale of low...
177-204https://deepblue.lib.umich.edu/bitstream/2027.42/48204/4/ID043.pdfhttps://deepblue.lib.umich....