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Type: Article
Published: 2023-04-28
Page range: 205–213
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A new species of the Triassic genus Ideliopsina (Grylloblattida: Ideliidae) from the Ominé locality (Momonoki Formation, southwest Japan)

The Kyushu University Museum, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan; Centre de Recherche en Paléontologie -Paris (CR2P), MNHN-CNRS-Sorbonne Université, Paris, France
Mine City Office, 326-1 Higashibun, Ominé -Cho, Mine, Yamaguchi 759-2292, Japan
Mine City Museum of History and Folklore, 279-1 Higashibun, Ominé-Cho, Mine, Yamaguchi 759-2212, Japan
Kashiwara, Sanyouonoda, Yamaguchi 757-0003, Japan
Centre de Recherche en Paléontologie -Paris (CR2P), MNHN-CNRS-Sorbonne Université, Paris, France
Grylloblattida Ideliidae insects taxonomy Upper Triassic Mine City area Mine Group Japan reflectance transforming imaging


A new species of Grylloblattida, Ideliopsina aristovi sp. nov., is described from the Upper Triassic Ominé locality (Momonoki Formation, Mine Group, Japan). It belongs to a typical Triassic genus, Ideliopsina Storozhenko, 1996, which species have been previously reported from the Kyrgyz Republic and the Kazakhstan in Central Asia. The new species shows that the corresponding family, the Ideliidae ranging from the Cisuralian to the Late Triassic, remained widely distributed during the latter period, before its extinction.


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