澳大利亚中新世的新水生昆虫,附 Chaoborus(双翅目,Chaoboridae)新物种的生态学和本体发育注释

IF 2.3 2区 地球科学 Q1 PALEONTOLOGY
Viktor Baranov, Michael Frese, Robert Beattie, Tara Djokic, Matthew R. McCurry
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引用次数: 0

摘要

我们描述了澳大利亚新南威尔士州中部中新世拉格斯塔特(McGraths Flat)出土的多种水生昆虫化石群,其中包括鞘翅目(Sialidae)、喙螨目(Limoniidae)、摇蚊目(Chironomidae)和喙螨科(Chaoboridae)的代表昆虫。该矿床出土的水生昆虫化石主要是幼虫。其中包括一种幽灵蠓(Chaoborus,Chaoboridae)、三种非咬螨(Chironomidae)、一种鹤虱(Limoniidae)和一种桤木蜓(Sialidae)。大量的化石标本使我们能够研究新蠓类的发育过程。我们通过对 Chaoborus 所有四个蜕期的形态测量,发现了化石幼虫的生长速度。与静水有关的类群和与流水有关的类群的同时出现,支持了这样的假设:麦格拉斯平地沉积在一个孤立的水体(牛颊湖/billabong)中,在涨水时受到河流的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New aquatic insects from the Miocene of Australia with notes on the ecology and ontogeny of a new species of Chaoborus (Diptera, Chaoboridae)
We describe a diverse aquatic insect assemblage from McGraths Flat, a Miocene Lagerstätte in central New South Wales, Australia that includes representatives of Sialidae, Limoniidae, Chironomidae and Chaoboridae. The aquatic insect fossils from this deposit consist predominantly of larvae. These include a new species of phantom midge (Chaoborus, Chaoboridae), three morphotypes of non‐biting midges (Chironomidae), one morphotype of cranefly (Limoniidae) and one morphotype of alderfly (Sialidae). The large number of fossil specimens enabled us to study the ontogeny of the new midge species. We discerned growth rates in fossil larvae, using morphometry of all four instars of Chaoborus. The simultaneous presence of taxa associated with still water and taxa associated with flowing water supports the hypothesis that McGraths Flat was deposited in an isolated water body (oxbow lake/billabong) with influence from a river during high water events.
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来源期刊
Papers in Palaeontology
Papers in Palaeontology PALEONTOLOGY-
CiteScore
4.50
自引率
4.30%
发文量
55
期刊介绍: Papers in Palaeontology is the successor to Special Papers in Palaeontology and a journal of the Palaeontological Association (www.palass.org). The journal is devoted to the publication of papers that document the diversity of past life and its distribution in time and space. Papers in Palaeontology is devoted to the publication of papers that document the diversity of past life and its distribution in time and space. As a sister publication to Palaeontology its focus is on descriptive research, including the descriptions of new taxa, systematic revisions of higher taxa, detailed biostratigraphical and biogeographical documentation, and descriptions of floras and faunas from specific localities or regions. Most contributions are expected to be less than 30 pp long but longer contributions will be considered if the material merits it, including single topic parts. The journal publishes a wide variety of papers on palaeontological topics covering: palaeozoology, palaeobotany, systematic studies, palaeoecology, micropalaeontology, palaeobiogeography, functional morphology, stratigraphy, taxonomy, taphonomy, palaeoenvironmental reconstruction, palaeoclimate analysis, biomineralization studies.
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