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The new beetle family, Umenocoleidae, described in this paper is based on a single fossil specimen, collected from the greenish-gray shale of the Lower Cretaceous of Yumen, Kansu. This is a quite complete specimen with the dorsal part of body well-preserved, only the head being damaged. Among the Palaeozoic and Mesozoic beetles so far discovered, none had been so completely and distinctly preserved. Particularly noteworthy is the fact that it presents a combination of archaic features which may afford useful...

The new beetle family, Umenocoleidae, described in this paper is based on a single fossil specimen, collected from the greenish-gray shale of the Lower Cretaceous of Yumen, Kansu. This is a quite complete specimen with the dorsal part of body well-preserved, only the head being damaged. Among the Palaeozoic and Mesozoic beetles so far discovered, none had been so completely and distinctly preserved. Particularly noteworthy is the fact that it presents a combination of archaic features which may afford useful data in the discussion of the problem concerning the origin of Coleoptera.

本文记述一种化石甲虫,采自甘肃玉门,白垩纪地层。标本相当完整,虽属中生代产物,却保持有一些较原始的特征,如多节的触角,不平行的鞘翅纵脉,不折的膜翅以及翅端的密集脉纹。据此种种,作者认为鞘翅目应与广翅目近缘,两者源出于共同的原始祖型。

 
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