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A New Species of Sphenobaiera from Middle Jurassic of Junggar Basin, Xinjiang, China

SUN Ge1, MIAO Yu-yan1,2,CHEN Yue-jun1   

  1. 1. Paleontology and Stratigraphy Center, Jilin University, Changchun 130026， China;2. Beijing Natural History Museum, Beijing 100050， China
  • Received:2006-07-10 Revised:1900-01-01 Online:2006-09-26 Published:2006-09-26
  • Contact: SUN Ge

Abstract: A new species Sphenobaiera junggarensis sp. nov. from the Middle Jurassic Xishanyao Formation in western Junggar Basin of Xinjiang, China, is reported for the first time. The new species is characterized by its cuticles in which it is amphistomatic in type, stomata are few in upper cuticles and much more in lower cuticles with basically longitudinal in orientation, ordinary epidermal cells have irregularl cutinized domes on surface and guard cells possess finely comb-shaped cutinizations between the contiguous cutinized radial striations on the outer fringes. The authors also discusse the significance of the new species of Sphenobaiera in its taxonomic and paleoclimatic studies.

Key words: Sphenobaiera, new species, Middle Jurassic, Junggar Basin, Xinjiang

CLC Number: 

  • Q914.87
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