NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Affinities and palaeobiogeographical significance of some Ordovician bivalves from East Yunnan, China
Fang Zong-Jie1; Cope, John C. W.2
2008
Source PublicationALCHERINGA
ISSN0311-5518
Volume32Issue:3Pages:297-312
AbstractThe four poorly known Ordovician bivalve genera erected by Guo (1988) from the Lower Ordovician (Floian) Hongshiya Formation of East Yunnan, China are redescribed, based on a re-examination of the type material, and their taxonomic position is clarified. This paper places the four genera in the superfamily Cycloconchoidea. Reinterpretation of the hinge structure of Baidiostraca allows us to recognize it as a cycloconchoid rather than a myophorid; the new family Baidiostracidae is proposed. Zhenxiongella gen. nov. is described based on Taselasmodum septatum Guo, 1988, because this species differs significantly from the type species Taselasmodum decussatum Guo, 1985. These two genera differ fundamentally from other cycloconchids in possession of a strong posterior internal septum in each valve and a pedal retractor scar at the posterior of the hinge-plate; they are included in the new subfamily Taselasmodinae. The poorly understood family Nyassidae Hall, 1885 is enlarged and discussed herein; it seems that this family forms a unique lineage in the Cycloconchoidea. Zadimerodiidae Guo, 1988 is a junior subjective synonym of Nyassidae Hall, 1885. On the basis of the bivalve faunas, East Yunnan was sufficiently far from West Yunnan to prevent interchange of most species, although one species is common to both plates. On the other hand, a common genus and the similarities between two cycloconchids suggest proximity of East Yunnan and Australia, although these regions have no species in common. New information on the duplivincular ligament of glyptarcids allows these to be classified with the superorder Pteriomorphia, rather than the Heteroconchia, as previously proposed. The comparisons between the eastern West Yunnan fauna and those of Western Europe, where glyptarcids are also important members of the fauna, suggest that the eastern West Yunnan fauna lay at a much higher palaeolatitude than the East Yunnan fauna.
Keywordbivalves Cycloconchoidea Ordovician Hongshiya Formation East Yunnan China
DOI10.1080/03115510802096150
Language英语
WOS KeywordSOUTH WALES ; SPAIN
Funding ProjectChinese Academy of Sciences[KZCX3-SW-149] ; Knowledge Innovation Programm of Nanjing Institute of Geology and Palaeontology ; Major Basic Research Project of MST, China[2006CB806400] ; State Key Laboratory of Palaeobiology and Stratigraphy, NIGPCAS[073102]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000258403800005
Funding OrganizationChinese Academy of Sciences ; Knowledge Innovation Programm of Nanjing Institute of Geology and Palaeontology ; Major Basic Research Project of MST, China ; State Key Laboratory of Palaeobiology and Stratigraphy, NIGPCAS
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/114
Collection中国科学院南京地质古生物研究所
Corresponding AuthorFang Zong-Jie
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Natl Museum Wales, Dept Geol, Cardiff CF10 3NP, S Glam, Wales
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Fang Zong-Jie,Cope, John C. W.. Affinities and palaeobiogeographical significance of some Ordovician bivalves from East Yunnan, China[J]. ALCHERINGA,2008,32(3):297-312.
APA Fang Zong-Jie,&Cope, John C. W..(2008).Affinities and palaeobiogeographical significance of some Ordovician bivalves from East Yunnan, China.ALCHERINGA,32(3),297-312.
MLA Fang Zong-Jie,et al."Affinities and palaeobiogeographical significance of some Ordovician bivalves from East Yunnan, China".ALCHERINGA 32.3(2008):297-312.
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