白垩纪中期新的隐蔽黏菌甲虫与鞘翅目的早期进化(鞘翅目:Cucujoidea)

IF 1.5 2区 农林科学 Q2 ENTOMOLOGY Arthropod Systematics & Phylogeny Pub Date : 2021-11-23 DOI:10.3897/asp.79.e72724
Yan‐Da Li, Erik Tihelka, Zhenhua Liu, Diying Huang, Chen-yang Cai
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引用次数: 4

摘要

隐黏菌甲虫,sphinddae,是一个中等多样性的瓜类甲虫家族,其成员一生都与黏菌紧密相连。狮身人面虫的化石记录很少;在白垩纪琥珀中发现了茎形蛇目动物和冠状目动物,它们的系统位置不确定。在此,我们回顾了sphinddae的中生代化石记录,并报道了一个新的sphindus newtonigen属和种。11月11日等,来自缅甸北部的阿尔巴尼亚/罗马尼亚琥珀(约99 Ma)。在前额骨角上有明显的侧腔,这使水osphinus与其他所有的spindus区别开来。我们的系统发育分析表明,Trematosphindus是spinddae中早期分化的一个属,是除原spindus或原spindus和Odontosphindus之外的其余家族的姐妹。新发现的化石提供了基冠黏菌甲虫在白垩纪中期开始多样化的证据,为了解鞘类动物与黏菌共同进化的时间尺度提供了有价值的校准点。
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New mid-Cretaceous cryptic slime mold beetles and the early evolution of Sphindidae (Coleoptera: Cucujoidea)
Abstract The cryptic slime mold beetles, Sphindidae, are a moderately diverse cucujoid beetle family, whose members are obligately tied to slime molds throughout their life. The fossil record of sphindid beetles is sparse; stem-sphindids and crown-group members of uncertain systematic placement have been reported from Cretaceous ambers. Here we review the Mesozoic fossil record of Sphindidae and report a new sphindid genus and species, Trematosphindus newtonigen. et sp. nov., from Albian/Cenomanian amber from northern Myanmar (ca. 99 Ma). Trematosphindus is set apart from all other sphindids by the presence of distinct lateral cavities on the anterior pronotal angles. Our phylogenetic analysis identifies Trematosphindus as an early-diverging genus within Sphindidae, sister to the remainder of the family except Protosphindus, or Protosphindus and Odontosphindus. The new fossils provide evidence that basal crown slime mold beetles begun to diversify by the mid-Cretaceous, providing a valuable calibration point for understanding timescale of sphindid co-evolution with slime molds.
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来源期刊
Arthropod Systematics & Phylogeny
Arthropod Systematics & Phylogeny Agricultural and Biological Sciences-Insect Science
CiteScore
2.50
自引率
5.60%
发文量
26
审稿时长
12 weeks
期刊介绍: Arthropod Systematics & Phylogeny releases three times per year. Research fields covered are the taxonomy, morphology/anatomy, phylogeny (molecular or morphology-based), historical biogeography and palaeontology of arthropod taxa. Arthropod Systematics & Phylogeny is the successor of Entomologische Abhandlungen, formerly published by the Museum of Zoology Dresden, Germany.
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