The developmental trend of labrum and median eyes of Orsten-type preserved Phosphatocopina (Crustacea)
Liu Zheng1,2; Dong XiPing1,2
2010
发表期刊SCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
卷号53期号:1页码:18-26
摘要The Phosphatocopina (Crustacea, Arthropoda) is an important group of 'Orsten-type' preserved fossils. It is resolved as the sister-group of Eucrustacea. Here we study the labrum, the median eyes, and the inner lamella of Phosphatocopina based on the selected specimens respectively from western Hunan, South China, and Sweden. The labrum characters of different species exhibit interspecific difference. The ratio of labrum length/shield length is significant to the reconstruction of the ontogeny of phosphatocopines. The labrum characters should be introduced to the diagnosis of Phosphatocopina. In the earliest growth stage, the median eyes were inconspicuous, almost as flat as the other area of the hypstome. However, with the growth of the individuals they became conspicuous. There were two obviously concave structures on the ventral side of the hypostome in later stages, which were the positions where the median eyes should have been located. In addition, the two modes of preservation of the inner lamella, i.e., that of shrinking and that of bulging up, are interpreted as the preservational artifact herein.
关键词Phosphatocopina Crustacea Orsten-type preservation morphology ontogeny Cambrian South China Sweden
DOI10.1007/s11430-010-0006-2
语种英语
关键词[WOS]3-DIMENSIONAL PRESERVATION ; ANIMAL EMBRYOS ; CHINA ; APPENDAGES ; MIDDLE
资助项目National Natural Science Foundation of China[40772008] ; National Natural Science Foundation of China[40572003] ; Doctoral Program of High Education[20060001059] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences[103102]
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000276546600002
项目资助者National Natural Science Foundation of China ; Doctoral Program of High Education ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences
出版者SCIENCE CHINA PRESS
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/430
专题中国科学院南京地质古生物研究所
通讯作者Dong XiPing
作者单位1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
第一作者单位中国科学院南京地质古生物研究所
通讯作者单位中国科学院南京地质古生物研究所
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Liu Zheng,Dong XiPing. The developmental trend of labrum and median eyes of Orsten-type preserved Phosphatocopina (Crustacea)[J]. SCIENCE CHINA-EARTH SCIENCES,2010,53(1):18-26.
APA Liu Zheng,&Dong XiPing.(2010).The developmental trend of labrum and median eyes of Orsten-type preserved Phosphatocopina (Crustacea).SCIENCE CHINA-EARTH SCIENCES,53(1),18-26.
MLA Liu Zheng,et al."The developmental trend of labrum and median eyes of Orsten-type preserved Phosphatocopina (Crustacea)".SCIENCE CHINA-EARTH SCIENCES 53.1(2010):18-26.
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