KMS Institute of Vertebrate Paleontology and Paleoanthropology
Lower Cambrian vertebrates from South China | |
Shu, DG; Luo, HL; Morris, SC; Zhang, XL; Hu, SX; Chen, L; Han, J; Zhu, M; Li, Y; Chen, LZ; Shu, DG (reprint author), NW Univ Xian, Early Life Inst, Xian 710069, Peoples R China. | |
1999-11-04 | |
发表期刊 | NATURE |
ISSN | 0028-0836 |
卷号 | 402期号:6757页码:42-46 |
文章类型 | Article |
摘要 | The first fossil chordates are found in deposits from the Cambrian period (545-490 million years ago), but their earliest record is exceptionally sporadic and is often controversial, Accordingly, it has been difficult to construct a coherent phylogenetic synthesis far the basal chordates, Until now, the available soft-bodied remains have consisted almost entirely of cephalochordate-like animals from Burgess Shale-type faunas, Definite examples of agnathan fish do not occur until the Lower Ordovician (similar to 475 Myr BP), with a more questionable record extending into the Cambrian, The discovery of two distinct types of agnathan from the Lower Cambrian Chengjiang fossil-Lagerstatte is, therefore, a very significant extension of their range, One form is lamprey-like, whereas the other is closer to the more primitive hagfish, These finds imply that the first agnathans may have evolved in the earliest Cambrian, with the chordates arising from more primitive deuterostomes in Ediacaran times (latest Neoproterozoic, similar to 555 Myr BP), if not earlier.; The first fossil chordates are found in deposits from the Cambrian period (545-490 million years ago), but their earliest record is exceptionally sporadic and is often controversial, Accordingly, it has been difficult to construct a coherent phylogenetic synthesis far the basal chordates, Until now, the available soft-bodied remains have consisted almost entirely of cephalochordate-like animals from Burgess Shale-type faunas, Definite examples of agnathan fish do not occur until the Lower Ordovician (similar to 475 Myr BP), with a more questionable record extending into the Cambrian, The discovery of two distinct types of agnathan from the Lower Cambrian Chengjiang fossil-Lagerstatte is, therefore, a very significant extension of their range, One form is lamprey-like, whereas the other is closer to the more primitive hagfish, These finds imply that the first agnathans may have evolved in the earliest Cambrian, with the chordates arising from more primitive deuterostomes in Ediacaran times (latest Neoproterozoic, similar to 555 Myr BP), if not earlier. |
WOS标题词 | Science & Technology |
URL | 查看原文 |
关键词[WOS] | ORIGIN ; ORDOVICIAN ; EVOLUTION ; AUSTRALIA ; CHORDATE |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000083638600035 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.205/handle/311034/3939 |
专题 | 中科院古脊椎所(2000年以后) 古低等脊椎动物研究室 |
通讯作者 | Shu, DG (reprint author), NW Univ Xian, Early Life Inst, Xian 710069, Peoples R China. |
作者单位 | 1.NW Univ Xian, Early Life Inst, Xian 710069, Peoples R China 2.NW Univ Xian, Dept Geol, Xian 710069, Peoples R China 3.Yunnan Inst Geol Sci, Kunming, Peoples R China 4.Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China |
推荐引用方式 GB/T 7714 | Shu, DG,Luo, HL,Morris, SC,et al. Lower Cambrian vertebrates from South China[J]. NATURE,1999,402(6757):42-46. |
APA | Shu, DG.,Luo, HL.,Morris, SC.,Zhang, XL.,Hu, SX.,...&Shu, DG .(1999).Lower Cambrian vertebrates from South China.NATURE,402(6757),42-46. |
MLA | Shu, DG,et al."Lower Cambrian vertebrates from South China".NATURE 402.6757(1999):42-46. |
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