Two New Plant Genera of Pennsylvanian Age from Kansas Coal Balls
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منابع مشابه
Early Diagenetic Calcareous Coal Balls and Roof Shale Concretions from the Pennsylvanian (Allegheny Series)
The calcareous concretions studied formed in different depositional environments associated with the Pcnnsylvanian eyclothems of cast central Ohio. The late syngenetic to early diagenetie coal balls from Lower Frecport Coal in Jefferson County were formed by cellular permineralization of decaying terrestrial plants in a peat swamp. These coal balls, composed of N9.N% calcite, 7.0% pyrite, and 2...
متن کاملStructurally Preserved Plants from the Pennsylvanian (Monongahela Series) of Southeastern Ohio
Structurally preserved vascular plants have recently been discovered in calcite petrifactions near the town of Shade, Ohio The florule includes representatives of all of the major groups of Carboniferous-age vascular plants, with members of the Calamitales and Marattiales appearing in the highest percentages. The relationships between the Shade coal-ball plants and other coal-ball floras in Nor...
متن کاملArborescent Lycopod Reproduction and Paleoecology in a Coal-swamp Environment of Late Middle Pennsylvanian Age (herrin Coal, Illinois, U.s.a.)
DiMichele, W.A. and Phillips, T.L., 1985. Arborescent lycopod reproduction and paleoecology in a coal-swamp environment of late Middle Pennsylvanian age (Herrin Coal, Illinois, U.S.A.) Rev. Palaeobot. Palynol., 44: 1—26. The arborescent lycopods dominated many coal-swamp plant communities of the Middle Pennsylvanian. A relatively small number of important species occurred in coal swamps, each w...
متن کاملStelastellara Baxter, Axes of Questionable Gymnosperm Affinity with Unusual Habit - Middle Pennsylvanian
DiMichele, W.A. and Phillips, T.L., 1979. Stelastellara Baxter, axes of questionable gymnosperm affinity with unusual habit — Middle Pennsylvanian. Rev. Palaeobot. Palynol., 27: 103-117. Two specimens of Stelastellara are described from Middle Pennsylvanian age coal balls from mid-continent United States. The stellate main axis of both specimens has a solid, exarch, actinostele with elliptical ...
متن کاملState of Illinois, Department of Registration and Education.
Geological Survey had the valued services of America's dean of Carbonifer-ous paleobotany, Dr. David White, in a general reconnaissance of the Upper Coal Measures, now precisely referred to as the Pennsylvanian system. Previous to t h a t time but little work had been done, chiefly by Leo Lesquereux from collections by A. H. Worthen and associates. White's work led to a general correlation of t...
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تاریخ انتشار 2012