作 者:陈金华 FrankSTILLER CHEN Jin-hua and STILLER Frank (State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China ,jhchengnigpas. ac. cn, stiller@nigpas, ac. cn) 机构地区:中国科学院南京地质古生物探讨所现代古生物学和地层学国家重点实验室,南京210008 出 处:《古生物学报》2017年第4期458-466,共9页Acta Palaeontologica Sinica 摘 要:重新探讨K0bayashi(1968)报道的来自泰国的Nippononaiacarinata,以及Delvene和Munt(2017)报道的来自西班牙的Subnippononaia fordi标本;建立新亚属Nippononaia(Thainippononaia)StillerandChen,以及新种Nippononaia(Thainippononaia)hispaniensisStillerandChen,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,泰语论文题目,即Eonippononaia阶段与Nippononaia(Arctonaia)阶段之间的空白。A new subgenus, Thainippononaia Stiller 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. 关 键 词:Nippononaia 双壳类 非海相 ,泰语论文范文 |