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Issue: Vol. 3 No. 2: June (In progress) 2026
Type: Article
Published: 2026-06-24
DOI: 10.11646/mesozoic.3.2.4
Page range: 177-184
Abstract views: 26
PDF downloaded: 11

A new species of Proptychopterina (Diptera: Nematocera: Ptychopteridae) from the Middle Jurassic of the Jiyuan Basin, China

State Key Laboratory of Palaeobiology and Stratigraphy; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; Nanjing 210008; China
Nanjing Center; China Geological Survey; Nanjing 210016; China
State Key Laboratory of Palaeobiology and Stratigraphy; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; Nanjing 210008; China
Yangshuzhuang Formation Yanliao biota central China biostratigraphic correlation

Abstract

A new species of the dipteran family Ptychopteridae, Proptychopterina jiyuanensis sp. nov., is described based on a nearly complete forewing from the Middle Jurassic Yangshuzhuang Formation in the Jiyuan Basin of central China. This new discovery represents the second fossil record of Ptychopteridae from China. We also revise the morphological features of Proptychopterina opinata Lin & Lukashevich, 2006, a species previously documented from the Middle Jurassic Daohugou Beds of Inner Mongolia, north-eastern China. The present discovery further supports biostratigraphic correlation between the Daohugou and Jiyuan fossil localities.

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