Palaeontinidae Handlirsch, 1906
publication ID |
https://doi.org/ 10.5281/zenodo.173205 |
DOI |
https://doi.org/10.5281/zenodo.6255327 |
persistent identifier |
https://treatment.plazi.org/id/941187CC-FFE7-7A1B-1A40-FE3FB9A3FAB0 |
treatment provided by |
Plazi (2016-04-04 12:04:18, last updated 2024-11-27 08:36:26) |
scientific name |
Palaeontinidae Handlirsch, 1906 |
status |
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Palaeontinidae Handlirsch, 1906 View in CoL
Gansucossus Wang, Zhang et Fang, nom. nov. pro Yumenia Hong, 1982: 81 , nec Yumenia Hou, 1958: 93 .
Type species. Yumenia pectinata Hong, 1982 ; by present designation.
Revised diagnosis. Hind wing length 22–32 mm, length/width ratio 1.5–1.9; costal area wide (length/width ratio 3.6–5.5); Sc terminating in indentation; RP fused with M1 for a considerable interval; Stem M with four branches; M3+4 connected to CuA by crossvein mcua; media area (between M2+3+4 and CuA) wide; CuA arising basally; A1 terminating in anal margin.
Similar to Shurabocossus, but differs in the hind wing being comparatively long, stem M long, and A1 terminating in the anal margin. This genus differs from Plachutella in having M3+4 arising from M2+3+4 and A1 terminating in the anal margin; from Fletcheriana in having RP fused with M1, and M3+4 arising from M2+3+4; from Suljuktaja in having the hind wing relatively long, stem M long, and A1 terminating in the anal margin; and from Cicadomorpha in having a different shape of costal area (maximal width in basal 1/4–1/3 for Cicadomorpha ).
Type locality and horizon. LowerMiddle Jurassic, Dashankou Group; Subei County, Yumen City, Gansu Province, China.
Etymology. The generic name is after the type locality, Gansu Province.
Composition. Three species, Gansucossus pectinatus ( Hong, 1982) , Gansucossus luanpingensis ( Hong, 1983) , and Gansucossus typicus sp. nov., described below.
Handlirsch, A. (1906 - 1908) Die fossilen Insekten und die Phylogenie der rezenten Formen. Ein Handbuch fr Palontologen und Zoologen. Engelmann, Leipzig, 1430 pp.
Hong, Y. C. (1982) Mesozoic fossil insects of Jiuquan basin in Gansu Province. Geological Publishing House, Beijing, 223 pp. (in Chinese).
Hong, Y. C. (1983) Middle Jurassic fossil insects in north China. Geological Publishing House, Beijing, 187 pp. (in Chinese, English summary).
Hou, Y. C. (1958) Cretaceous nonmarine ostracods of the subfamily Cyprideinae from north-western and north-eastern regions of China. Memoirs of the Institute of Palaeontology, Academia Sinica, 1, 33 - 104 (in Chinese, English summary).
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