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首页> 外文期刊>Alcheringa: An Australasian Journal of Palaeontology >A new genus and species of Steninae from the late Eocene of France (Coleoptera, Staphylinidae)
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A new genus and species of Steninae from the late Eocene of France (Coleoptera, Staphylinidae)

机译:来自法国始新世晚期的Steninae的新属和种(鞘翅目,Staphylinidae)

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摘要

A remarkable new genus and species of rove beetle, Eocenostenus fossilis gen. et sp. nov., is described and figured based on one well-preserved specimen from the late Eocene of Monteils (near Alès, Gard, France). Eocenostenus is definitively placed in the extant subfamily Steninae, based on the combination of dense and coarse body punctation, globular and protruding eyes, exposed and closely spaced antennal insertions on the vertex, and six visible abdominal terga. Eocenostenus differs from the two extant stenine genera Stenus and Dianous most notably in the structure of the prothorax, which is strongly transverse and with unusual anterolateral projections, and in the anteriorly placed antennal insertions. This new discovery highlights the palaeodiversity of a genus-poor subfamily and suggests that the early diversification of Steninae is probably complicated.
机译:ro甲虫的一个杰出的新属和种,Eocenostenusiferis gen。等。 nov。是根据一个来自Monteils晚始新世(法国加尔省Alès附近)保存完好的标本进行描述和计算的。根据密集和粗体的点状,球状和突出的眼睛,在顶点上裸露且间隔很近的触角插入以及六个可见的腹部韧带的组合,Eocenostenus明确地放置在现存的Steninae亚科中。 Eocenostenus与两个现存的Stenine属Stenus和Dianous的不同之处尤其在于前胸的结构,前胸结构呈强横形且具有不寻常的前外侧突出部,并且在前部放置触角插入物。这一新发现凸显了一个属较差的亚科的古生物多样性,并表明Steninae的早期多样化可能很复杂。

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