| The earliest phyllolepid (Placodermi, Arthrodira) from the Late Lochkovian (Early Devonian) of Yunnan (South China) |
| Dupret, V.; Zhu, M.
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| 2008-03-01
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| 发表期刊 | GEOLOGICAL MAGAZINE
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| 卷号 | 145期号:2页码:257-278 |
| 文章类型 | Article
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| 摘要 | Gavinaspis convergens, a new genus and species of the Phyllolepida (Placodermi: Arthrodira), is described on the basis of skull remains from the Late Lochkovian (Xitun Formation, Early Devonian) of Qujing (Yunnan, South China). This new form displays a mosaic of characters of basal actinolepidoid arthrodires and more derived phyllolepids. A new hypothesis is proposed concerning the origin of the unpaired centronuchal plate of the Phyllolepida by a fusion of the paired central plates into one single dermal element and the loss of the nuchal plate. A phylogenetic analysis suggests the position of Gavinaspis gen. nov. as the sister group of the Phyllolepididae, in a distinct new family (Gavinaspididac fam. nov.). This new form suggests a possible Chinese origin for the Phyllolepida or that the common ancestor to Phyllolepida lived in an area including both South China and Gondwana, and in any case corroborates the palaeogeographic proximity between Australia and South China during the Devonian Period. |
| 关键词 | Devonian
China
Placodermi
Phyllolepids
Biostratigraphy
Palaeobiogeography
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| WOS标题词 | Science & Technology
; Physical Sciences
|
| 关键词[WOS] | SOUTHEASTERN AUSTRALIA
; FISH PLACODERMI
; EARTH GEOGRAPHY
; SARCOPTERYGII
; VERTEBRATES
; SANDSTONE
; WALES
; GENUS
|
| 收录类别 | SCI
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| 语种 | 英语
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| WOS研究方向 | Geology
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| WOS类目 | Geosciences, Multidisciplinary
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| WOS记录号 | WOS:000254480000006
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://119.78.100.205/handle/311034/1896
|
| 专题 | 古低等脊椎动物研究室
|
| 作者单位 | Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
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推荐引用方式
GB/T 7714 |
Dupret, V.,Zhu, M.. The earliest phyllolepid (Placodermi, Arthrodira) from the Late Lochkovian (Early Devonian) of Yunnan (South China)[J]. GEOLOGICAL MAGAZINE,2008,145(2):257-278.
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| APA |
Dupret, V.,&Zhu, M..(2008).The earliest phyllolepid (Placodermi, Arthrodira) from the Late Lochkovian (Early Devonian) of Yunnan (South China).GEOLOGICAL MAGAZINE,145(2),257-278.
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| MLA |
Dupret, V.,et al."The earliest phyllolepid (Placodermi, Arthrodira) from the Late Lochkovian (Early Devonian) of Yunnan (South China)".GEOLOGICAL MAGAZINE 145.2(2008):257-278.
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