A remarkable insect from the Pennsylvanian of the Joggins Formation in Nova Scotia, Canada: insights into unusual venation of Brodiidae and nymphs of Megasecoptera
A remarkable insect from the Pennsylvanian of the Joggins Formation in Nova Scotia, Canada: insights into unusual venation of Brodiidae and nymphs of Megasecoptera
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DOI：
10.1080/14772019.2017.1283364
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发表时间：
2017-01-01
影响因子：
2.6
通讯作者：
Hoernschemeyer, Thomas
中科院分区：
文献类型：
--
作者：
Prokop, Jakub;Pecharova, Martina;Hoernschemeyer, Thomas
本文报道了一种新的大节翅目昆虫--乔戈布罗迪亚（Brodia jogulensis sp. nov.）在加拿大新斯科舍省的联合国教科文组织世界遗产Joggins地层中报道。新种的鉴定是基于后翅脉序的独特模式，其具有MP的三个前分支和具有四个后分支的梳状CuP。它出现在海洋盆地的Langsettian沉积物中，与英国的煤炭措施和美国伊利诺伊州的Mazon Creek中已知的其他宾夕法尼亚州Brodiidae相对应。基于我们的重新审查，我们建议转移属Pyebrodias，与P. martinsnetoi Brauckmann & Herd，2003，描述为一个假定的成员Brodiidae，到古网翅目家庭incertae sedis，因为它缺乏Brodiidae的大多数诊断特征。1967年的正模标本被私人收藏，并补充了另一个标本的描述，该标本被收藏在芝加哥的菲尔德博物馆。对Brodiidae的化石记录进行了回顾，并对翅膀形态和特化结构的功能（如A1和CuP之间特化横脉形式的增强物）进行了补充说明。Brodiidae的推测的进化和Megasecoptera中翅膀的发育是discussed.http://zoobank.org/urn:lsid:zoobank.org:pub:741846CB-FAD0-4103-90D3-2896D8909E94
The discovery of a new megasecopteron, Brodia jogginsensis sp. nov., is reported from the Joggins Formation, a UNESCO World Heritage Site in Nova Scotia, Canada. The new species diagnosis is based on the unique pattern of hind wing venation bearing three anterior branches of MP and pectinate CuP with four posterior branches. Its occurrence in Langsettian deposits of the Maritimes Basin correspond well with other Pennsylvanian Brodiidae known from the Coal Measures of the UK and Mazon Creek in Illinois, USA. Based on our re-examination, we propose to transfer the genus Pyebrodia, with P. martinsnetoi Brauckmann & Herd, 2003, described as a putative member of Brodiidae, into Palaeodictyoptera family incertae sedis as it lacks most of the diagnostic features of Brodiidae. The holotype of Eubrodia dabasinskasi Carpenter, 1967, housed in a private collection, was supplemented by the description of an additional specimen housed in The Field Museum, Chicago. The fossil record of Brodiidae is reviewed and additional remarks concerning the wing morphology and the function of specialized structures, such as reinforcements in the form of a specialized crossvein between A1 and CuP, are given. Putative nymphs of Brodiidae and development of wings in Megasecoptera are discussed.http://zoobank.org/urn:lsid:zoobank.org:pub:741846CB-FAD0-4103-90D3-2896D8909E94