Raphidioptera (snakeflies) are the least diverse order among extant Holometabola, representing relicts of their rich Mesozoic paleofauna. Baissopteridae are one of the two major lineages from the Mesozoic, but with a poorly known evolutionary history. Here, we report the first fossil record of Baissopteridae from the mid-Cretaceous of Myanmar, represented by a diverse assemblage including 10 new species in six genera: Allobaissoptera oligophlebia gen. et sp. nov., Baissoptera burmana sp. nov., B. maculata sp. nov., B. monopoda sp. nov., B. pankowskiorum sp. nov., B. wangi sp. nov., Burmobiassoptera jiaxiaoae gen. et sp. nov., Electrobaissoptera burmanica gen. et sp. nov., Rhynchobaissoptera hui gen. et sp. nov., and Stenobaissoptera xiai gen. et sp. nov. The new Cretaceous baissopterids provide significant morphological evidence in favor of the monophyly of this family. The morphological diversity in these Cretaceous baissopterids, particularly with some specialized and unique characters, highlights the early radiation of snakeflies formed in the complex tropical forest ecosystem of the mid-Cretaceous.

中文翻译：

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缅甸中白垩世（Raphidioptera）已灭绝的蛇蝇科Baissopteridae的一个新的多样的古动物群

Raphidioptera（蛇蝇）是现存全变体中多样性最少的目，代表了它们丰富的中生代古动物的遗存。Baissopteridae 是来自中生代的两个主要谱系之一，但其进化历史鲜为人知。在这里，我们报告了缅甸白垩纪中期的拜蜂科的第一个化石记录，由包括 6 个属 10 个新物种在内的多样化组合为代表：异翅翅目 oligophlebia gen。等 sp. 11 月，缅甸白翅目 sp. nov., B. maculata sp. nov., B. monopoda sp. 11 月，B. pankowskiorum sp. nov., B. wangi sp. 十一月， Burmobiassoptera jiaxiaoae gen。等 sp. 十一月，Electrobaissoptera burmanica gen。等 sp. 11月, Rhynchobaissoptera hui gen. 等 sp. 11 月，和 Stenobaissoptera xai gen。等 sp. 十一月 新的白垩纪 baissopterids 提供了重要的形态学证据，支持该科的单系性。这些白垩纪 baissopterids 的形态多样性，特别是具有一些专门和独特的特征，突出了在白垩纪中期复杂的热带森林生态系统中形成的蛇蝇的早期辐射。