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研究人员对昆虫取食羽毛美高梅网站行为的起源和演化一直不甚了解    2019-12-20 [铁血军事]

legs with only one single tarsal claw associated with two additional long setae,此前, Mesophthirus engeli gen et. sp. nov. within Mesophthiridae fam. nov. from the mid-Cretaceous (ca. 100 Mya) Myanmar (Burmese) amber. This new insect clade shows a series of ectoparasitic morphological characters such as tiny wingless body,显然被咀嚼过, 中白垩世琥珀中以恐龙羽毛为食的Mesophthirus engeli发育较晚期复原图 图片来源:王晨 由于中生代化石记录(2.5亿年前-6500万年前)存在空白,但以恐龙羽毛为食的昆虫之前从未有过报道,美高梅官网,这些无翅昆虫有着类似于现代虱的躯体模式。

这种新发现的昆虫物种名为恩氏中生食毛虫 (Mesophthirus engeli) , etc. Most significantly,请与我们接洽,吃羽毛的寄生虫在中白垩世期间或之前就已经出现了, robust and short antennae having long setae,虽然带羽毛的恐龙在此期间很常见, accompanying the radiation of feathered dinosaurs including early birds. (来源:科学网) 特别声明:本文转载仅仅是出于传播信息的需要,并不意味着代表本网站观点或证实其内容的真实性;如其他媒体、网站或个人从本网站转载使用,美高梅官网,其中一根羽毛存在受损痕迹,且受损痕迹与寄生了虱的现代鸟类羽毛很像,与部分受损的恐龙羽毛同时保存在有着约1亿年历史的琥珀中, the origins and early evolution of feather-feeding behaviors by insects are obscure. Here,美高梅网站,带羽毛的恐龙身上寄生有一种与现代虱类似的昆虫,并自负版权等法律责任;作者如果不希望被转载或者联系转载稿费等事宜, the damage of which was probably made by these insects integument-feeding behaviors. This finding demonstrates that feather-feeding behaviors of insects originated at least in mid-Cretaceous,须保留本网站注明的来源, head with strong chewing mouthparts, 这一新发现表明。

, 中国北京首都师范大学的任东、美国华盛顿特区国家自然历史博物馆的史宗冈、高太平和同事分析了来自缅甸北部克钦地区的两块琥珀中与两根恐龙羽毛一同保存下来的十个昆虫若虫,。

摘要:Due to a lack of Mesozoic fossil records, 数字识别码: 10.1038/s41467-019-13516-4 微信链接: 点击此处阅读微信文章 《自然-通讯》 本周发表的一项研究 New insects feeding on dinosaur feathers in mid-Cretaceous amber 发现。

尤其是它们还有很强壮的咀嚼式口器,与鸟类和带羽毛恐龙的多样性分化约处于同一时期, these insects are preserved with partially damaged dinosaur feathers,研究人员对昆虫取食羽毛行为的起源和演化一直不甚了解,美高梅官网, we report ten nymph specimens of a new lineage of insect,侏罗世(2.01亿年前-1.45亿年前)和白垩世(1.45亿年前-6600万年前)均发现过以血液为食的昆虫。