Telmaeshna paradoxica gen. et sp. nov., a new fossil dragonfly (Insecta: Odonata: Anisoptera) from the Yixian Formation, Liaoning, China
Telmaeshna paradoxica gen. et sp. nov., a new fossil dragonfly (Insecta: Odonata: Anisoptera) from the Yixian Formation, Liaoning, China
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DOI：
10.11646/zootaxa.1681.1.6
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发表时间：
2008-01
期刊：
影响因子：
0.9
通讯作者：
Bing Zhang;D. Ren;H. Pang
中科院分区：
文献类型：
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作者：
Bing Zhang;D. Ren;H. Pang
Telmaeshna 悖论 gen.等11月，描述了中国辽宁省北票市朝米店村附近的上侏罗统至下白垩统义县组。基于以下特征，它被包含在异翅目：Aeshnoptera：Aeshnomorpha：Panaeshnida中：明确的肛门环和 Rspl；波状 RP2、RP3/4 和 MA；分割超三角形和盘状三角形；和长时间的失态。它不能被归入任何已描述的现存或灭绝的Panaeshnida家族，但在了解更多特征（前翅、身体特征）之前，我们不会建立一个新的家族来容纳它。因此，由于科系不确定，这个新属被暂时保留。讨论了它在异翅目中的系统发育关系。
Telmaeshna paradoxica gen. et sp. nov., is described from the Upper Jurassic to Lower Cretaceous Yixian Formation, near Chaomidian Village, Beipiao City, Liaoning Province, China. It is included in the Anisoptera: Aeshnoptera: Aeshnomorpha: Panaeshnida, on the basis of the following characters: strongly elongated pterostigma; well-defined anal loop and Rspl; undulated RP2, RP3/4 and MA; divided hypertriangle and discoidal triangle; and prolonged gaff. It cannot be assigned to any described extant or extinct family of Panaeshnida, but we refrain from erecting a new family to accommodate it until more features (forewing, body characters) are known. Consequently, this new genus is provisionally retained as family uncertain. Its phylogenetic relationships within Anisoptera are discussed.