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dc.contributor.author Li, Gang
dc.contributor.author Wan, Xiaoqiao
dc.contributor.author Batten, David J.
dc.contributor.author Bengston, Peter
dc.contributor.author Xi, Dangpeng
dc.contributor.author Wang, Pujun
dc.date.accessioned 2011-06-23T11:45:55Z
dc.date.available 2011-06-23T11:45:55Z
dc.date.issued 2011-06-23
dc.identifier.citation Li , G , Wan , X , Batten , D J , Bengston , P , Xi , D & Wang , P 2011 , ' Spinicaudatans from the Upper Cretaceous Nenjiang Formation of the Songliao Basin, northeast China: taxonomy and biostratigraphy ' Cretaceous Research , vol 30 , no. 3 , pp. 687-698 . , 10.1016/j.cretres.2008.12.008 en
dc.identifier.other PURE: 168175
dc.identifier.other dspace: 2160/7099
dc.identifier.uri http://hdl.handle.net/2160/7099
dc.description Li, G., Wan, X., Batten, D. J., Bengston, P., Xi, D., Wang, P. (2009). Spinicaudatans from the Upper Cretaceous Nenjiang Formation of the Songliao Basin, northeast China: taxonomy and biostratigraphy. Cretaceous Research, 30, (3), 687-698. en
dc.description.abstract The spinicaudatan (conchostracan) Dictyestheria, originally recovered from the Yaojia Formation, is recognized to occur also in the basal part of the overlying Nenjiang Formation. This means that the Dictyestheria elongata (= D. ovata) Zone extends from the Yaojia Formation into the upper Turonian basal part of the First Member of the Nenjiang Formation and underlies the Halysestheria yui Zone at Yaojia Railway Station, Dehui City, Jilin Province, northeast China. The fossil record shows that the basal part of the Halysestheria yui Zone is dominated by Plectestheria songhuaensis in the study area. The diagnoses of Dictyestheria and Plectestheria are revised on the basis of an examination of specimens under a scanning electron microscope. In both genera the radial lirae on the growth bands near the umbo are long and relatively widely spaced. There is a fine reticulum between them in the umbonal part of the carapace and cross-bars occur on the ventral surface. The ornament of both genera indicates that they can be assigned to the family Halysestheriidae rather than to the Jilinestheriidae, in which they have been placed previously. The discovery of serration along the lower margins of growth lines in Plectestheria indicates its close relationship with Orthestheria (Migransia), supporting an interpretation of parallel evolution of O. (Migransia) to Plectestheria in East Asia and Bauruestheria in South America. (C) 2008 Elsevier Ltd. All rights reserved. en
dc.format.extent 12 en
dc.language.iso eng
dc.relation.ispartof Cretaceous Research en
dc.subject Spinicaudatans en
dc.subject branchipoda en
dc.subject biostratigraphy en
dc.subject palaebiogeography en
dc.subject upper cretaceous en
dc.subject yaojia en
dc.subject formation en
dc.subject nenjiant formation en
dc.subject China en
dc.title Spinicaudatans from the Upper Cretaceous Nenjiang Formation of the Songliao Basin, northeast China: taxonomy and biostratigraphy en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.cretres.2008.12.008
dc.contributor.institution River Basin Dynamics and Hydrology en
dc.description.status Peer reviewed en


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