Lycopsid-arthropod associations and odonatopteran oviposition on Triassic herbaceous Isoetites
Lycopsid-arthropod associations and odonatopteran oviposition on Triassic herbaceous Isoetites
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DOI：
10.1016/j.palaeo.2012.05.016
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发表时间：
2012-08-01
影响因子：
3
通讯作者：
Kerp, Hans
中科院分区：
文献类型：
--
作者：
Moisan, Philippe;Labandeira, Conrad C.;Kerp, Hans
石松类和食草节肢动物之间的联系在化石记录中是罕见的，在石松科的三个现存谱系中同样稀少。卷柏科和蛇柳科。然而，从吉尔吉斯斯坦西南部的中上三叠统Madygen组，我们描述了isoettalean寄主，Isoetites（一种刺草）和椭圆卵插入疤痕模式之间的第一次联系，这种模式改变了寄主的活植物组织。这种卵损伤，在某些情况下以典型的之字形分布，很可能是由来自已灭绝的蜻蜓目原翅目（蜻蜓）亚目的小刺蛉类昆虫造成的。如果这种鉴定是正确的，它表明蜻蜓的相当大的行为停滞一直延伸到中生代。我们检测到的石松类产卵损害，为中生代前被子植物时期的主要寄主名单增加了一笔资源，这些寄主是产卵蜻蜓的寄主资源，特别是马尾、蕨类植物和种子植物，包括针叶树、厚皮植物、厚皮植物、银杏植物、贝尼塔科植物，可能还有苏铁。(C) 2012 Elsevier B.V.版权所有
Associations between lycopsid and herbivorous arthropods are rare in the fossil record and equally sparse among the three surviving lineages of Lycopodiaceae. Selaginellaceae and Isoetaceae. However, from the Middle Upper Triassic Madygen Formation of southwestern Kyrgyzstan, we describe the first association between an isoetalean host, Isoetites (a quillwort), and a pattern of elliptical egg insertion scars that altered the host's live plant tissues. This ovipositional damage, in some cases deployed in a stereotypical zigzag pattern, was most likely caused by small damselfly-like insects from the extinct suborder Archizygoptera of the order Odonatoptera (dragonflies). If this identification is correct, it indicates considerable behavioral stasis of dragonflies extending deep into the Mesozoic. Our detection of lycopsid ovipositional damage adds to the list of major plant hosts from the preangiospermous Mesozoic that were resources for host use by egg-laying dragonflies, particularly horsetails, ferns, and seed plants that included conifers, peltasperms, corystosperms, ginkgophytes, bennettitaleans and probably cycads. (C) 2012 Elsevier B.V. All rights reserved.