新生代克钦琥珀中的新琥珀科(半翅目,栉水母科),及其对古生物地理学影响的说明

IF 1.9 3区 地球科学 Q1 GEOLOGY
Jun Chen , De Zhuo , Wenqian Wang , Yan Zheng , Baizheng An
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引用次数: 0

摘要

在白垩纪中期的克钦琥珀生物群中,已灭绝的蛙形目科(Sinoalidae)显示出高度的古多样性。本研究修订了蛙形目陈属(Chen,2020)。Poinar et Brown, 2023 在原论文中与亚科和族一起被暂时归入蜥形目,本研究建议将其同义为蜥形目Ⅳ科,并将其命名为(Poinar et Brown, 2023)comb. nov.本文根据克钦琥珀中的一块几乎完整的化石,描述并说明了该属的一个新种--新种。缅甸地层的冈瓦纳起源表明,克钦琥珀中的华夏龙类很可能是冈瓦纳生物的残留类群之一,因此该科在侏罗纪时在地球上有广泛的古生物地理分布。到了早白垩世,华南蜓科的分布范围缩小了:至少可能在欧亚大陆东北部消失了。在中生代晚期,由于被子植物花卉革命后的食物危机,该半翅目物种灭绝。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New Sinoalidae (Hemiptera, Cercopoidea) in Cenomanian Kachin amber, with notes on its paleobiogeographic implications

The froghopper extinct family Sinoalidae shows high paleo-diversity in mid-Cretaceous Kachin amber biota. The sinoalid genus Cretadorus Chen, 2020 is revised in this study. Araeoanasillus Poinar et Brown, 2023, tentatively placed in Sinoalidae with subfamily and tribe incertae sedis in original paper, is proposed herein to be synonymized under Cretadorus, leading to Cretadorus leptosomus (Poinar et Brown, 2023) comb. nov. A new species of this genus, Cretadorus qingyui sp. nov., is described and illustrated on the basis of an almost complete fossil trapped in Kachin amber. The Gondwanan origin of Burma Terrane suggests that Sinoalids in Kachin amber are likely one of residual groups of Gondwanan biotae, and so this family had wide paleobiogeographic distribution on the earth in the Jurassic. In the Early Cretaceous, the distribution range of Sinoalidae has reduced: it at least probably disappeared in northeastern Eurasia. This hemipteran lineage was extinct in the late Mesozoic owing to food crisis after the angiosperm floristic revolution.

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来源期刊
Cretaceous Research
Cretaceous Research 地学-地质学
CiteScore
4.10
自引率
19.00%
发文量
235
审稿时长
12 weeks
期刊介绍: Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings. Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale. Research Areas include: • Regional geology • Stratigraphy and palaeontology • Palaeobiology • Palaeobiogeography • Palaeoceanography • Palaeoclimatology • Evolutionary Palaeoecology • Geochronology • Global events.
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