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New petalurid dragonfly (Odonata: Aktassiidae) from the Lower Cretaceous of northern China

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CRETACEOUS RESEARCH
卷 151, 期 -, 页码 -

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ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cretres.2023.105609

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Odonata; Pseudocymatophlebiinae; Mesozoic; Fossil; China

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A new species of dragonfly, Pseudocymatophlebia bisecta sp. nov., was discovered in China's Lower Cretaceous period. This species is characterized by its dense wing venation and an increased number of cells in specific regions. It also differs from other species in the same genus by having a two-celled discoidal triangle in both fore- and hind wings. Additionally, a revision of the genus Pseudocymatophlebia has been proposed.
A new species Pseudocymatophlebia bisecta sp. nov. (Odonata: Aktassiidae) is described from the Lower Cretaceous of China. It is assigned to this family by the typical very dense wing venation with a distinctly increased number of cells in the regions of R and M, the area between RP3/4 and MA widened near the posterior wing margin on forewing, with more than three rows of cells; RP3/4 undulate and distally diverging from MA. Pseudocymatophlebia bisecta sp. nov. differs from the other two species of this genus by discoidal triangle two-celled, elongate and wide in both fore-and hind wings. In addition, a revision of the genus Pseudocymatophlebia has been proposed.& COPY; 2023 Published by Elsevier Ltd.

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