Megolisthaerus chinensis gen. et sp.n. (Coleoptera: Staphylinidae incertae sedis): an enigmatic rove beetle lineage from the Early Cretaceous
Megolisthaerus chinensis gen. et sp.n. (Coleoptera: Staphylinidae incertae sedis): an enigmatic rove beetle lineage from the Early Cretaceous
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中华巨蜥属
DOI：
10.1163/187631210x527034
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发表时间：
2010
影响因子：
1.2
通讯作者：
Ren, Dong
中科院分区：
文献类型：
--
作者：
Solodovnikov, Alexey;Yue, Yanli;Ren, Dong
本文记述了一种已灭绝的中国大腹甲Megolisthaeruschinensis Solodovnikov & Yue，gen.et sp.n.义县组（距今约1.25 - 1.21亿年）的化石。新的分类群显示一个非常令人困惑的形态特征的组合，其中一些是不充分的保存明确的解释。因此，Megolisthaerus chinensis不能明确地分配到任何迄今描述的隐翅虫亚科。根据现有的形态特征的评价，它似乎是一个成员，或密切相关的，最近的亚科Olisthaerinae和Phloeocharinae，一起形成一个松散的定义谱系内的Tachyporine组亚科。Megolisthaerus chinensis是一个值得注意的物种，表明早白垩世隐翅虫科的系统发育结构可能与这个非常多样化的科的现代动物群所显示的结构有显着不同。Megolisthaerus可能是一个已灭绝的超属级类群，自然不能被归类在基于最近谱系研究的当前科系统中。
A remarkable extinct rove beetle, Megolisthaerus chinensis Solodovnikov & Yue, gen. et sp.n., from the Yixian Formation (some 125-121 million years ago) in China is described. The new taxon displays a very puzzling combination of morphological characters, some of which are insufficiently preserved for unambiguous interpretation. As a result, Megolisthaerus chinensis cannot be clearly assigned to any of the hitherto described subfamilies of Staphylinidae. Based on the evaluation of the available morphological characters, it seems to be either a member of, or closely related to, the recent subfamilies Olisthaerinae and Phloeocharinae, together forming a loosely defined lineage within the Tachyporine-group of subfamilies. Megolisthaerus chinensis is a remarkable species that shows that the phylogenetic structure of Staphylinidae in Early Cretaceous might have been significantly different from the one displayed by the recent fauna of this enormously diverse family. It is possible that Megolisthaerus manifests an extinct group of suprageneric rank that, naturally, cannot be classified within the current system of the family that is based on the study of recent lineages.