期刊
PALAEONTOLOGY
卷 53, 期 -, 页码 307-317出版社
WILEY
DOI: 10.1111/j.1475-4983.2010.00934.x
关键词
Insecta; Diptera; Brachycera; Archisargidae; Rhagionemestriidae; Jurassic; Daohugou; China
类别
资金
- National Natural Science Foundation of China [40632010]
- Major Basic Research Projects of Ministry of Science and Technology, China [2006CB806400]
Four new Brachycera fossils were collected from the Daohugou biota, China. Among these, two impressions demonstrating peculiar wing venation can be designated as two new species of a new genus (Mostovskisargus portentosus gen. et sp. nov. and M. signatus sp. nov.) referred to a new subfamily Mostovskisarginae (subfam. nov.) within Archisargidae. The third impression belongs to a new species (Calosargus (Pterosargus) sinicus sp. nov.) referred to the subgenus Pterosargus Mostovski, 1997 of Calosargus Mostovski, 1997 within Archisarginae, Archisargidae. It is only the second member of the subgenus Pterosargus worldwide. The fourth impression is a nearly complete fly, Jurassinemestrinus orientalis gen. et sp. nov. referable to Rhagionemestriidae. It reveals new morphological data about rhagionemestriids and extends the geographical distribution of this group beyond Europe and Central Asia during the Mesozoic. A correlation for the archisargid composition of taxa in Daohugou and Karabastau formations is discussed. The age of the fly-bearing strata is briefly reassessed and can be more accurately limited to the Callovian-Oxfordian based on both biostratigraphical correlation and radiometric dating.
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