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现代地质 ›› 2024, Vol. 38 ›› Issue (01): 240-247.DOI: 10.19657/j.geoscience.1000-8527.2023.092

• 古生物学 • 上一篇    下一篇

山西太原西山下二叠统太原组鳞木属化石研究

贾高文1(), 史建儒1, 杨永胜2, 王瑾1, 郝思宇1, 薛沛霖1, 李佳瑞1   

  1. 1.山西自然博物馆,山西 太原 030024
    2.山西农业大学资源环境学院,山西 太谷 030801
  • 收稿日期:2023-03-08 修回日期:2023-08-29 出版日期:2024-02-10 发布日期:2024-03-20
  • 作者简介:贾高文,男,硕士研究生,工程师,1986年出生,古生物学与地层学专业,主要从事晚古生代植物化石调查研究。Email: jiagw769@163.com
  • 基金资助:
    山西省自然资源厅项目“山西晚古生代化石及地层系统调查”;山西农业大学一流课程建设项目(2022-JXZL-17);山西省高等学校教学改革创新项目(J20230321)

Characteristics of the Lepidodendron Fossils from the Lower Permian Taiyuan Formation in Xishan area of Taiyuan, Shanxi

JIA Gaowen1(), SHI Jianru1, YANG Yongsheng2, WANG Jin1, HAO Siyu1, XUE Peilin1, LI Jiarui1   

  1. 1. Shanxi Natural History Museum, Taiyuan, Shanxi 030024, China
    2. College of Resources and Environment, Shanxi Agricultural University, Taigu, Shanxi 030801, China
  • Received:2023-03-08 Revised:2023-08-29 Online:2024-02-10 Published:2024-03-20

摘要:

华夏植物群是晚古生代全球四大著名植物群之一,鳞木属(Lepidodendron)广泛分布于四大植物群中。华夏植物区鳞木属因叶痕较大、叶痕下无通气道痕而被视为地域特征显著的东方型鳞木,区别于具有通气道痕的欧美植物区鳞木属。山西太原西山地区是华夏植物群的重要分布地之一,本文对太原西山地区下二叠统太原组的4块东方型鳞木化石进行鉴定和描述。结果表明,它们分属三种鳞木属叶座化石,即Lepidodendron oculus-felisLepidodendron cervicisumLepidodendron cf .aolungpylukense 。根据鳞木属的大化石记录和相似属的研究成果,推测该属可能在晚泥盆世晚期起源于华南板块,跨洋流到达土耳其小亚细亚一带后开始分化,一支向西北到达欧洲西部并扩散至美洲北部,另一支从土耳其一带向北扩散至西伯利亚,最终散布到东欧、中亚地区。

关键词: 鳞木属, 太原西山地区, 华夏植物群, 下二叠统, 古地理

Abstract:

The Cathaysia flora is one of the four famous floras in Late Paleozoic, and Lepidodendron is widely distributed in the four major floras.In the Cathaysia flora, Lepidodendron is regarded as the oriental form due to its distinctive characteristics, such as large leaf traces without air passage marks under the leaf.This is different from the Lepidodendron in the Euramerican flora that have air passage mark traces.In this study, three species of Lepidodendron from the Lower Permian Taiyuan Formation in the Xishan area of Taiyuan, Shanxi, are identified and been investigated in detail.According to the fossil records of Lepidodendron in the world and the latest results of the phylogeny, we believe that the Lepidodendron genus may originate in the late of Late Devonian from South China, then it arrived at the Asia Minor of Turkey over sea in the early of Early Carboniferous, and at the end it entered into North America across Western Europe.Another route can be that the genus reached to European Russia from the Asia Minor and then spread to the eastern European and central Asia in the Carboniferous and Permian period.

Key words: Lepidodendron, Xishan area in Taiyuan, Cathaysia flora, Lower Permian, phytogeography

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