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Catastrophically Buried Middle Pennsylvanian Sigillaria and Calamitean Sphenopsids from Indiana, Usa: what Kind of Vegetation was This?

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dc.contributor.author DiMichele, William A. en
dc.contributor.author Nelson, W. John en
dc.contributor.author Elrick, Scott en
dc.contributor.author Ames, Philip R. en
dc.date.accessioned 2009-03-24T19:13:42Z
dc.date.available 2009-03-24T19:13:42Z
dc.date.issued 2009
dc.identifier.citation DiMichele, William A., Nelson, W. John, Elrick, Scott, and Ames, Philip R. 2009. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F7144">Catastrophically Buried Middle Pennsylvanian Sigillaria and Calamitean Sphenopsids from Indiana, Usa: what Kind of Vegetation was This?</a>." <em>Palaios</em>. 24 (3):159&ndash;166. <a href="https://doi.org/10.2110/palo.2008.p08-051r">https://doi.org/10.2110/palo.2008.p08-051r</a> en
dc.identifier.issn 0883-1351
dc.identifier.uri http://hdl.handle.net/10088/7144
dc.description.abstract A catastrophically buried stand of calamitean sphenopsids and sigillarian lycopsids is reported from the Middle Pennsylvanian of southwestern Indiana, in the Illinois Basin. The plants were exposed in the highwall of a small surface mine and were rooted in a thin bed of coal (peat), thus representing a flooded and buried swamp surface. Coarse, floodborne silts and sands buried the forest to a depth of 250 linear meters of exposed highwall surface, the vegetation appears to have been a patchwork of calamitean thickets, with stems perhaps as tall as 3-5 m, within which scattered, but much larger, emergent Sigillaria trees grew, possibly reaching heights of 10-15 m. No ground cover was observed, nor were foliage or reproductive organs attributable to the dominant plants found. The growth of this vegetation in a peat-forming swamp indicates conditions of high water availability, likely in a humid, high-rainfall climate. This kind of plant assemblage, however, cannot be characterized as a rain forest, given that it consisted of medium-height thickets of horsetails with scattered, emergent, and polelike, giant lycopsids, thus lacking a closed upper canopy and possibly only partially shading the ground. en
dc.format.extent 455896 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartof Palaios en
dc.title Catastrophically Buried Middle Pennsylvanian Sigillaria and Calamitean Sphenopsids from Indiana, Usa: what Kind of Vegetation was This? en
dc.type Journal Article en
dc.identifier.srbnumber 77640
dc.identifier.doi 10.2110/palo.2008.p08-051r
rft.jtitle Palaios
rft.volume 24
rft.issue 3
rft.spage 159
rft.epage 166
dc.description.SIUnit NH-Paleobiology en
dc.description.SIUnit NMNH en
dc.citation.spage 159
dc.citation.epage 166


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