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题名: Revised taxonomy of selected fossil endocarp species in the Menispermaceae using a morphometric approach
作者: Jacques, Frederic M. B.3, 4; Liu, Christopher Yu-Sheng1, 2; Martinetto, Edoardo5; Zhou, Zhe-Kun3
刊名: GEODIVERSITAS
关键词: Menispermaceae ; Menispermum ; Sinomenium ; morphometrics ; semilandmark ; fossil
英文摘要: Several Cenozoic endocarp remains from the northern hemisphere have been described with strong affinities to either Menispermum L. or Sinomenium Die Is, a monophyletic group of menispermous vines. It has been proposed that all of these fossil species are synonymous and should be included within Sinomenium. In order to evaluate this suggestion, we have studied the morphological variation ranges in the menispermous endocarps with geometric morphometrics, and then the ranges of the selected fossil endocarps is compared to the ranges of modern endocarps. The shape of each endocarp is described using eight landmarks and 17 semilandmarks, accounting for the outline and the positions of lateral ridge and foramen on the endocarps. Endocarp ornamentation is studied by statistical comparisons of the number of transverse ridges. It is concluded that the ranges of variation within the fossil genera, all morphologically related to horseshoe-shaped endocarps in Menispermaceae, are found not to be greater than that in the only extant species of Sinomenium, S. acutum (Thunb.) Rehder & Wilson. Sinomenium macrocarpum Liu & Jacques, 2010 differs from the other fossil species of Sinomenium by its higher number of transverse ridges. All other fossil species of Sinomenium, except S. macrocarpum, and Wardensheppeya Eyde, 1970 are synonymous. Menispermum? taylori Chandler, 1964 is transferred to Sinomenium. The fossil genus Palaeosinomenium Chandler, 1961 is confirmed through the obliquity of its endocarp, but all species are found to be synonymous. Menispermicarpum rariforme Chandler, 1961 is also included in Palaeosinomenium.
出版日期: 2011
卷号: 33, 期号:1, 页码:177-197
DOI标识: 10.5252/g2011n1a8
语种: 英语
收录类别: SCI
学科分类: Paleontology
ISSN号: 1280-9659
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3844
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.E Tennessee State Univ, Dept Biol Sci, Johnson City, TN 37614 USA
2.E Tennessee State Univ, Don Sundquist Ctr Excellence Paleontol, Johnson City, TN 37614 USA
3.Chinese Acad Sci, Key Lab Biodivers & Biogeog, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
4.Chines Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
5.Univ Torino, Dipartimento Sci Terra, I-10125 Turin, Italy

Recommended Citation:
Jacques, Frederic M. B.; Liu, Christopher Yu-Sheng; Martinetto, Edoardo; Zhou, Zhe-Kun.Revised taxonomy of selected fossil endocarp species in the Menispermaceae using a morphometric approach,GEODIVERSITAS,2011,33(1):177-197
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