The oldest fossil species of the rove beetle subfamily Oxyporinae (Coleoptera: Staphylinidae) from the Early Cretaceous (Yixian Formation, China) and its phylogenetic significance
The oldest fossil species of the rove beetle subfamily Oxyporinae (Coleoptera: Staphylinidae) from the Early Cretaceous (Yixian Formation, China) and its phylogenetic significance
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DOI：
10.1080/14772019.2010.493049
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发表时间：
2011-03
影响因子：
2.6
通讯作者：
Yanli Yue;D. Ren;A. Solodovnikov
中科院分区：
文献类型：
--
作者：
Yanli Yue;D. Ren;A. Solodovnikov
山西尖孔菌Oxyporus yixianus Solodovnikov & Yue sp. nov.，描述了产于辽宁义县组的一种新的古甲虫。它被明确地归入Oxyporus Fabricius，1775，Oxyporinae亚科现存的唯一属。除了迄今已知的，更年轻的化石Oxyporinae，这个新发现的物种的显着年龄较大，使目前接受的系统发育假说，Oxyporinae是隐翅虫亚科的一个基础血统更合理。义县尖孔菌（Oxyporus yixianus）非常现代且具有丰富的特化形态，因此假设该物种是尖孔菌亚科（Oxyporinae）从隐翅虫亚科（Staphylininae）的茎分化而来的一个衍生阶段。Oxyporinae与隐翅虫亚科其他类群的分化可能比早白垩世开始得更早，而Oxyporinae的真菌相关生物学也明显比Oxyporus yixianus记载的更早。
Oxyporus yixianus Solodovnikov & Yue sp. nov., a new Early Cretaceous fossil rove beetle species, is described from the Yixian Formation of Liaoning Province, China. It is clearly placed in Oxyporus Fabricius, 1775, the extant and only genus of the subfamily Oxyporinae. In addition to the hitherto-known, much younger fossils of Oxyporinae, the significantly older age of this newly discovered species makes the currently accepted phylogenetic hypothesis that Oxyporinae is a basal lineage of the Staphylininae group more plausible. The remarkably modern and specialization-rich morphology of Oxyporus yixianus leads to the assumption that this species exemplifies a rather derived stage of divergence of Oxyporinae from the stem of the Staphylininae group. Divergence of Oxyporinae from the rest of the Staphylininae group lineage may have begun significantly earlier than the Early Cretaceous, and the fungus-associated biology of Oxyporinae is also apparently older than documented by Oxyporus yixianus.