A New Genus of Paleonisciformes from the Early Cretaceous Longjiang Formation in Heilongjiang Province, China
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This work was financially supported by the China Geological Survey (Grants No. DD20160207, DD20160126). We would like to thank Dr. Wu Wenhao of the Jilin University for his help during the field-work. We also wish to thank the anonymous reviewers for their comments.

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    Abstract:

    We report a new genus and species of Paleonisciformes–Cretolepis dongbeiensis gen. et sp. nov., from the Early Cretaceous Longjiang Formation in Qiqihar City, Heilongjiang Province. The new materials can be distinguished from other Paleonisciformes genera by possessing the following characteristics: a sclerotic ring composed of more than five small bones; three pieces of suborbitals; one dermohyomandibular; a jaw hanging apparently inclined anteriorly; long and tall horizontal branch of the preopercular, a short vertical branch, with the angle formed by the two branches slightly higher than 90°; a triangular dorsal fin in the middle point between the pelvic and anal fins. The discovery of Mesozoic Paleonisciformes in northeastern China adds to the biodiversity and geographic distribution of Paleonisciformes.

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WANG Xuri, TAN Kai, LU Liwu, LI Tao, CAI Qingqing.2018. A New Genus of Paleonisciformes from the Early Cretaceous Longjiang Formation in Heilongjiang Province, China[J]. Acta Geologica Sinica(),92(3):889-896

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History
  • Received:January 01,2018
  • Revised:April 04,2018
  • Adopted:
  • Online: June 19,2018
  • Published: