来自大韩民国晋州地层的一个新的早白垩世 "megapodagrionid "属（Zygoptera: Coenagriomorpha)

IF 1.7 3区地球科学 Q2 PALEONTOLOGY

Palaeoworld Pub Date : 2025-01-06 DOI:10.1016/j.palwor.2025.200908

André Nel , Gi-Soo Nam , Corentin Jouault

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引用次数: 0

摘要

Koreapodagrion coloratus n. gen. n. sp.代表了已知的第三个白垩纪“巨足龙”分类群，来自朝鲜半岛的下阿尔巴尼亚。另外两个分别来自中国和朝鲜民主主义人民共和国的Barremian和Barremian - aptian矿床。这种分布在东亚，表明该地区在早白垩世有利于这些豆娘。Koreapodagrion coloratus n. gen. n. spp .具有独特的着色图案、翅膜上的彩色区和特殊的翅脉，除其他外，具有细长的翼柱头、极长的节后区和翼柱头下方具有强曲线的IR1。这个新的分类单元强调了在“巨足纲”感知系统中被低估的多样性。

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A new Early Cretaceous ‘megapodagrionid’ genus (Zygoptera: Coenagriomorpha) from the Jinju Formation of the Republic of Korea

Koreapodagrion coloratus n. gen. n. sp. represents the third known Cretaceous ‘megapodagrionid’ taxon and is described from the lower Albian of the Korean Peninsula. The other two were described from Barremian and Barremian–Aptian deposits from China and the Democratic People’s Republic of Korea, respectively. This distribution in East Asia, suggests that the area was favorable to these damselflies during the Early Cretaceous. Koreapodagrion coloratus n. gen. n. sp. is characterized by a distinctive coloration pattern, colored zones on the wing membrane, and a particular wing venation, inter alia, characterized by an elongate pterostigma, a very long postnodal area, and IR1 with a strong curve below pterostigma. This new taxon highlights the underestimated diversity within the ‘megapodagrionid’ sensu lato.

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来源期刊

Palaeoworld PALEONTOLOGY-

CiteScore

4.00

自引率

5.90%

发文量

期刊介绍： Palaeoworld is a peer-reviewed quarterly journal dedicated to the study of past life and its environment. We encourage submission of original manuscripts on all aspects of palaeontology and stratigraphy, comparisons of regional and global data in time and space, and results generated by interdisciplinary investigations in related fields. Some issues will be devoted entirely to a special theme whereas others will be composed of contributed articles. Palaeoworld is dedicated to serving a broad spectrum of geoscientists and palaeobiologists as well as serving as a resource for students in fields as diverse as palaeobiology, evolutionary biology, taxonomy and phylogeny, geobiology, historical geology, and palaeoenvironment. Palaeoworld publishes original articles in the following areas: •Phylogeny and taxonomic studies of all fossil groups •Biostratigraphy, chemostratigraphy, chronostratigraphy •Palaeoecology, palaeoenvironment and global changes throughout Earth history •Tempo and mode of biological evolution •Biological events in Earth history (e.g., extinctions, radiations) •Ecosystem evolution •Geobiology and molecular palaeobiology •Palaeontological and stratigraphic methods •Interdisciplinary studies focusing on fossils and strata