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Issue: Vol. 60 No. 1: 27 Dec. 2024
Type: Article
Published: 2024-12-27
DOI: 10.12976/jib/2024.60.1.8
Page range: 47-54
Abstract views: 69
PDF downloaded: 54

New orthophlebiid mecopteran from the Middle Jurassic Yan’an Formation, China

Institute of Palaeontology, Yunnan Key Laboratory of Earth System Science, Yunnan Key Laboratory for Palaeobiology, MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University, Kunming 650500, China
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China
Mesozoic scorpionflies Panorpoidea Ordos Basin

Abstract

A new species of Orthophlebiidae, Orthophlebia lini Lian & Huang, sp. nov., is described and illustrated from the Middle Jurassic Yan’an Formation of Yan’an City, north China. The species is erected based on a specimen preserving both a forewing and a hindwing, and a paratype preserving only a hindwing. These specimens demonstrate variability in the relative lengths of Rs1+2 and Rs3+4 even within the same individual, confirming that previous taxonomic systems relying heavily on these features may be flawed. This new species represents the first mecopteran fossil species from the Yan’an Formation and increases our understanding of the species richness of Orthophlebiidae during the Jurassic.

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