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新亚属Thainippononaia——对泰国和西班牙一些早白垩世非海相双壳类的修订(英文)

THAINIPPONONAIASUBGEN.NOV.,A TAXONOMIC NOTE ON EARLY CRETACEOUS NON-MARINE BIVALVE TAXA FROM THAILAND AND SPAIN

【Author in Chinese】 陈金华Frank STILLER

【Author】 CHEN Jin-hua;STILLER Frank;State Key Laboratory of Palaeobiology and Stratigraphy,Nanjing Institute of Geology and Palaeontology,Chinese Academy of Sciences;

【Institution】 中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室

【Abstract in Chinese】 重新研究Kobayashi(1968)报道的来自泰国的Nippononaia carinata,以及Delvene和Munt(2011)报道的来自西班牙的Subnippononaia fordi标本;建立新亚属Nippononaia(Thainippononaia)Stiller and Chen,以及新种Nippononaia(Thainippononaia)hispaniensis Stiller and Chen,并认为新亚属代表Nippononaia属内的最早演化阶段,填补了Nippononaiidae科演化史的一个空白,即Eonippononaia阶段与Nippononaia(Arctonaia)阶段之间的空白。

【Abstract】 A new subgenus,ThainippononaiaStiller and Chen(type species:Nippononaia carinata Kobayashi,1968)of the Cretaceous non-marine bivalve genus Nippononaia is erected.It differs from the other congeneric subgenera especially in its submedian V-ribs forming larger angles(VA)of 38°-45°.The new subgenus is known from Early Cretaceous strata of Thailand and Spain.Some specimens from Spain are assigned to the new taxon Nippononaia(Thainippononaia)hispaniensis Stiller and Chen subgen.nov.sp.nov.The subgenera of the genus Nippononaia are briefly discussed.Nippononaia(Thainippononaia)is regarded as the earliest subgenus of Nippononaia,and it may represent an evolutionary stage intermediate between the Eonippononaia stage and the Nippononaia(Arctonaia)stage.

【Keywords in Chinese】 Nippononaia双壳类非海相早白垩世泰国西班牙
【Key words】 Nippononaiabivalvenon-marineEarly CretaceousThailandSpain
  • 【CLC code】Q915
  • 【Downloads】18
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