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A NEW PERLEIDID FROM THE SPATHIAN (OLENEKIAN, EARLY TRIASSIC) OF CHAOHU, ANHUI PROVINCE, CHINA

Rivista italiana di paleontologia e stratigrafia, 2013-11, Vol.119 (3) [Peer Reviewed Journal]

ISSN: 0035-6883 ;EISSN: 2039-4942 ;DOI: 10.13130/2039-4942/6040

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  • Title:
    A NEW PERLEIDID FROM THE SPATHIAN (OLENEKIAN, EARLY TRIASSIC) OF CHAOHU, ANHUI PROVINCE, CHINA
  • Author: ZUOYU SUN ; ANDREA TINTORI ; DAYONG JIANG ; RYOSUKE MOTANI
  • Subjects: Early Triassic ; New taxon ; Perleidiformes ; South China ; Spathian
  • Is Part Of: Rivista italiana di paleontologia e stratigrafia, 2013-11, Vol.119 (3)
  • Description: A new actinopterygian genus and species, Chaohuperleidus  primus gen. n. n. sp., is described from the Upper Member of the Nanlinghu Formation (Spathian, Olenekian, Early Triassic) at Majiashan (Majia Hill), Chaohu City, Anhui Province, Southeast China. The new taxon is assigned to the order Perleidiformes on the base of a combination of features: large wedge-like preoperculum with expanded infraorbital process and sensory canal running almost vertical along the posterior margin of the preoperculum itself, flank scalessomewhat higher than longer in the trunk region and presence of epaxial rays in the caudal fin.AmongPerleidiformes, the new taxonbelongsto thePerleididae, being very similar to Perleidus in the general body shape, pattern of the skull bones, the dentitionmade of peg-like marginal teeth,and number of epaxial rays. The new genus is characterized by the presence of a very large antero-dorsal process on the suboperculum, a high number (about 55) of transversal scale rows and dorsal and anal fin quite posterior. Chaohuperleidus gen. n., beingSpathianin age,represents the oldest record of the order Perleidiformes.
  • Publisher: Milano University Press
  • Language: English
  • Identifier: ISSN: 0035-6883
    EISSN: 2039-4942
    DOI: 10.13130/2039-4942/6040
  • Source: DOAJ Directory of Open Access Journals
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