From Wetlands to Wet Spots: Environmental Tracking and the Fate of Carboniferous Elements in Early Permian Tropical Floras

  title={From Wetlands to Wet Spots: Environmental Tracking and the Fate of Carboniferous Elements in Early Permian Tropical Floras},
  author={William A. DiMichele and Neil J. Tabor and Dan S. Chaney and W. John Nelson},
Diverse wetland vegetation flourished at the margins of the Midland Basin in north-central Texas during the Pennsylvanian Period. Extensive coastal swamps and an ever-wet, tropical climate supported lush growth of pteridosperm, marattialean fern, lycopsid, and calamite trees, and a wide array of ground cover and vines. As the Pennsylvanian passed into the Permian, the climate of the area became drier and more seasonal, the great swamps disappeared regionally, and aridity spread. The climatic… 

Analysis of climate and landscape change through the Pennsylvanian and Permian Monongahela and Dunkard Groups, Southeastern Ohio, USA

Paleosols and ichnofossils of the Late Pennsylvanian to Early Permian Monongahela and Dunkard groups of southeastern Ohio provide significant paleoenvironmental and paleoclimatic data related to the

Palynological evidence for Pennsylvanian extra-basinal vegetation in Atlantic Canada

Abstract: Pollen preserved in latest Westphalian and early Stephanian clastic deposits of the Sydney Coalfield, Cape Breton Island, suggest that there were zones of different vegetational habitats

Dryland vegetation from the Middle Pennsylvanian of Indiana (Illinois Basin): the dryland biome in glacioeustatic, paleobiogeographic, and paleoecologic context

Abstract A macrofloral assemblage dominated by elements of the Euramerican dryland biome is described from the Brazil Formation in Clay County, Indiana (Illinois Basin). Fossils were recovered from a

Paleoecological and paleoenvironmental interpretation of three successive macrofloras and palynofloras from the Kola Switch locality, lower Permian (Archer City Formation, Bowie Group) of Clay County, Texas, USA

The palynofloras, although varying between and even within the beds, indicate a common background species pool during the time interval sampled, suggesting that these distinct floras reflect local changes in microhabitat conditions under a constant climatic background.

Wetland-Dryland Vegetational Dynamics in the Pennsylvanian Ice Age Tropics

  • W. DiMichele
  • Environmental Science, Geography
    International Journal of Plant Sciences
  • 2013
Lower-diversity worlds such as the late Paleozoic, with a rich spectrum of environmental variations, offer insights into relationships between organisms and environments that expand understanding of these phenomena and enlarge their sense of what is possible or probable as the authors look to the future.

Pennsylvanian-Permian vegetational changes in tropical Euramerica

Vegetational changes across the Pennsylvanian-Permian boundary are recorded in several largely terrestrial basins across the Euramerican portions of equatorial Pangea. For the purposes of this paper,




  • W. DiMicheleR. Aronson
  • Geography, Environmental Science
    Evolution; international journal of organic evolution
  • 1992
The similarities of the marine and terrestrial patterns suggest that the combination of evolutionary opportunity, created by physical heterogeneity of the environment, and migrational opportunity,created by changing extrinsic conditions, may be underlying factors that transcend the specifics of organism and environment.

An early Pennsylvanian waterhole deposit and its fossil biota in a dryland alluvial plain setting, Joggins, Nova Scotia

The terrestrial ecology of Pennsylvanian tropical wetlands is understood in detail, but coeval dryland ecosystems remain highly enigmatic. To fill this gap in our knowledge, a Pennsylvanian

An Early Permian plant assemblage from the Taiyuan Formation of northern China with compression/impression and permineralized preservation.

Implications of an exceptional fossil flora for Late Cretaceous vegetation

THE rapid radiation of angiosperms during the Late Cretaceous has been thought to reflect their rise to vegetational dominance1–3. The number of species in a clade and its vegetational importance are

Pennsylvanian tropical rain forests responded to glacial-interglacial rhythms

Pennsylvanian tropical rain forests flourished during an icehouse climate mode. Although it is well established that Milankovitch-band glacial-interglacial rhythms caused marked synchronous changes

A quantitative approach to soil occurrence in alluvial deposits and its application to the Old Red Sandstone of Britain

Palaeosols (fossil soils) are a major component of alluvial deposits in the geological record. Not only do these typically show considerable variations in their degrees of development within single