Serrated microstructures on carapaces of Eosestheria (Branchiopoda: Diplostraca) in the Early Cretaceous Jehol Biota and discussion on the taxonomic value of these structures | |
Liao, Huanyu (廖焕宇)1,2,3; Shen, Yanbin (沈炎彬)3; Huang, Diying (黄迪颖)3 | |
刊名 | CRETACEOUS RESEARCH
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2019-03 | |
卷号 | 95页码:310-317 |
关键词 | Conchostracan Serrated Microstructure Setae Eosestheria Afrograptidae |
ISSN号 | 0195-6671 |
DOI | 10.1016/j.cretres.2018.11.023 |
英文摘要 | Serrated microstructures on the growth lines of some fossil conchostracans have been previously regarded as a key characteristic for judging the family Afrograptidae. Consequently, more than 20 relatively diverse genera were assigned into Afrograptidae based on the presence of serrated structures. This has created a series of taxonomic disputes in regard to fossil conchostracans. In this study, serrated microstructures on the growth lines of two species, namely, Eosestheria ovata and E. middendorfii, in the Early Cretaceous Jehol Biota are reported and described in detail. Our microstructural study shows that these structures are pit-shaped and are actually insertion remains of setae. Such microstructures commonly exist on the growth lines of some extant spinicaudatans. The setae probably served a sensory function. The presence or absence of these setae in extant species of the same genus can be variable and size of the setae of the same species can also be variable. Thus they are not appropriate to be considered as possessing important taxonomic value. Based on this conclusion, the species of the family Afrograptidae are listed in conjunction with the results of our previous study. (C) 2018 Elsevier Ltd. All rights reserved. |
WOS研究方向 | Geology ; Paleontology |
语种 | 英语 |
出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000458940600023 |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/22427] ![]() |
专题 | 中国科学院南京地质古生物研究所 南京地质古生物研究所_其他 |
作者单位 | 1.Yunnan Univ, Inst Deep Time Terr Ecol, Kunming 650091, Yunnan, Peoples R China; 2.Yunnan Univ, Postdoctoral Res Stn Ecol, Kunming 650091, Yunnan, Peoples R China; 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Ctr Excellence Life & Paleoenvironm, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Liao, Huanyu ,Shen, Yanbin ,Huang, Diying . Serrated microstructures on carapaces of Eosestheria (Branchiopoda: Diplostraca) in the Early Cretaceous Jehol Biota and discussion on the taxonomic value of these structures[J]. CRETACEOUS RESEARCH,2019,95:310-317. |
APA | Liao, Huanyu ,Shen, Yanbin ,&Huang, Diying .(2019).Serrated microstructures on carapaces of Eosestheria (Branchiopoda: Diplostraca) in the Early Cretaceous Jehol Biota and discussion on the taxonomic value of these structures.CRETACEOUS RESEARCH,95,310-317. |
MLA | Liao, Huanyu ,et al."Serrated microstructures on carapaces of Eosestheria (Branchiopoda: Diplostraca) in the Early Cretaceous Jehol Biota and discussion on the taxonomic value of these structures".CRETACEOUS RESEARCH 95(2019):310-317. |
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