A new genus and species, Hsiufua chaoi Zhang et Wang, is established based on a forewing from the Middle Jurassic Haifanggou Formation in Inner Mongolia, China and attributed to Campterophlebiidae, Isophlebioidea, Odo...A new genus and species, Hsiufua chaoi Zhang et Wang, is established based on a forewing from the Middle Jurassic Haifanggou Formation in Inner Mongolia, China and attributed to Campterophlebiidae, Isophlebioidea, Odonata. It is the largest odonate known in China and the fourth in the world in terms of forewing length. The maximum size (based on forewing length) of Odonata is smaller in the Permian than in the Mesozoic which is probably due to competition for prey between Odonata and Protodonata in the Permian. The reason that the maximum size of Jurassic odonates is larger than that of their extant relatives is most probably less competition and lower predation pressure from contemporary aerial vertebrates.展开更多
文中首次报道了缅甸琥珀中的长扁甲Mallecupes qingqingae Jarzembowski,Wang and Zheng,2017的阳茎化石,并讨论了该器官的古昆虫学和现生昆虫学意义。甲虫在现生生物中的多样性最高,而它们的生殖器则在甲虫系统分类中的应用已经超过百...文中首次报道了缅甸琥珀中的长扁甲Mallecupes qingqingae Jarzembowski,Wang and Zheng,2017的阳茎化石,并讨论了该器官的古昆虫学和现生昆虫学意义。甲虫在现生生物中的多样性最高,而它们的生殖器则在甲虫系统分类中的应用已经超过百年历史。这些小而精美的器官通常很难保存在化石里,但文中特异保存在中生代琥珀中的生殖器则为原鞘亚目甲虫的分类学研究提供了新的启示。展开更多
基金supported by the National Basic Research Program of China(2012CB821900)the National Natural Science Foundation of China(41272013, 41002006 and J0930006)the Chinese Academy of Sciences Visiting Professorship for Senior International Scientists (2011t2z04)
文摘A new genus and species, Hsiufua chaoi Zhang et Wang, is established based on a forewing from the Middle Jurassic Haifanggou Formation in Inner Mongolia, China and attributed to Campterophlebiidae, Isophlebioidea, Odonata. It is the largest odonate known in China and the fourth in the world in terms of forewing length. The maximum size (based on forewing length) of Odonata is smaller in the Permian than in the Mesozoic which is probably due to competition for prey between Odonata and Protodonata in the Permian. The reason that the maximum size of Jurassic odonates is larger than that of their extant relatives is most probably less competition and lower predation pressure from contemporary aerial vertebrates.
文摘文中首次报道了缅甸琥珀中的长扁甲Mallecupes qingqingae Jarzembowski,Wang and Zheng,2017的阳茎化石,并讨论了该器官的古昆虫学和现生昆虫学意义。甲虫在现生生物中的多样性最高,而它们的生殖器则在甲虫系统分类中的应用已经超过百年历史。这些小而精美的器官通常很难保存在化石里,但文中特异保存在中生代琥珀中的生殖器则为原鞘亚目甲虫的分类学研究提供了新的启示。
