DOI: 10.1016/j.palaeo.2016.07.024
论文题名: An early Permian coastal flora dominated by Germaropteris martinsii from basinal sediments in the Midland Basin, West Texas
作者: Baumgardner R.W. ; Jr. ; DiMichele W.A. ; Vieira N.D.S.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 459 起始页码: 409
结束页码: 422
语种: 英语
英文关键词: Peltasperm
; Sphenopteris
; Supaia
; Wolfcamp
英文摘要: Fossils found in cores from wells in the Midland Basin of West Texas include several kinds of terrestrial plants and a variety of marine animal remains. Depositional settings ranged from basin slope to deep-water basin floor, hence the presence of land plants was unexpected. The fossil plant assemblage is depauperate, dominated by Germaropteris martinsii, a Permian-age peltasperm. Other specimens include the peltasperm Supaia, Sphenopteris germanica, axes of uncertain affinity, and incertae sedis remains presumed to be terrestrial plants. Fossil plants are found predominantly in fine-grained, siliceous mudrocks between coarser-grained calcareous floatstones and wackestones/packstones interpreted as debrites and turbidites, suggesting that the plants were carried from land by surface currents before sinking to the basin floor and being buried by slowly accumulating hemipelagic sediment. Specimens were examined from drillcores in 14 wells spanning an interval from the lower Wolfcamp through the lower Leonard. This record of G. martinsii in lower Permian Wolfcamp rocks is among the earliest occurrences of these plants, which have been found most abundantly in upper Permian strata of Western Europe. © 2016 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68308
Appears in Collections: 过去全球变化的重建
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作者单位: Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, United States; Universidade Federal de Ouro Preto, Engenharia Geologica, Ouro Preto, Minas Gerais, Brazil
Recommended Citation:
Baumgardner R.W.,Jr.,DiMichele W.A.,et al. An early Permian coastal flora dominated by Germaropteris martinsii from basinal sediments in the Midland Basin, West Texas[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,459