重庆秀山溶溪组中华棘鱼形态学与组织学研究

曲靖师范学院学报 ›› 2024, Vol. 43 ›› Issue (6): 51-57.

重庆秀山溶溪组中华棘鱼形态学与组织学研究

彭礼健¹, 赵粉花², 郑玉屏³, 杨英⁴

1.曲靖师范学院自然历史文化研究中心,云南曲靖 655011;
2.曲靖市第一人民医院,云南曲靖 655099;
3.富源县富盛中学,云南富源 655504;
4.富源县文物管理所,云南富源 655599

收稿日期:2024-04-09 出版日期:2024-12-17 发布日期:2024-12-17
作者简介:彭礼健,曲靖师范学院自然历史文化研究中心科研助理,主要从事古生物与地层学研究.
基金资助:
国家自然科学基金重点项目“华南志留纪兰多维列世脊椎动物综合研究”(42130209);国家自然科学基金地区基金项目“重庆秀山志留纪真盔甲鱼类形态学与系统学研究”(42362001);云南省张弥曼院士工作站(202205AF150002).

Morphology and Histology of Sinacanthus in the Rongxi Formation of Xiushan, Chongqing

PENG Lijian¹, ZHAO Fenhua², ZHENG Yuping³ , YANG Ying⁴

1. Research Center of Natural History and Culture,Qujing Normal University,Qujing Yunnan 655011;
2. The First People's Hospital of Qujing,Qujing Yunnan 655099;
3. Fusheng Middle School in Fuyuan County, Fuyuan Yunnan 655504;
4. Cultural Relics Administration Institute of Fuyuan County, Fuyuan Yunnan 655599 ,China

Received:2024-04-09 Published:2024-12-17 Online:2024-12-17

摘要/Abstract

摘要： 对重庆秀山志留纪兰多维列世溶溪组地层中采集到的中华棘鱼棘刺化石开展深入研究,通过形态学特征分析和组织学切片研究,发现中华棘鱼在重庆秀山溶溪组地层中广泛分布且种类齐全,包括武昌中华棘鱼、平刺新中华棘鱼、塔里木巴楚鱼、澧县湖南棘鱼等,这是四种中华棘鱼在重庆地区的首次报道,证明早在4.4亿年前志留纪早期就有大量的有颌类生活于此. 而在溶溪组中采获的大量中华棘鱼类的棘刺化石与过去已有材料相比具有更好的组织学结构,进一步揭开中华棘鱼类的神秘面纱,证明中华棘鱼类并非基干软骨鱼类(棘鱼类),对世界最早软骨鱼类的形态学特征和组织学特征有新的认知.

关键词: 重庆秀山, 溶溪组, 中华棘鱼, 形态学, 组织学

Abstract: In this paper, Sinacanthus spines from the Silurian (Llandovian) Rongxi Formation of Xiushan County, Chongqing are investigated through morphological analysis and histological section research to find that Sinacanthus was widely distributed in the Rongxi Formation, including Sinacanthus wuchangensis, Sinacanthus sp., Tarimacanthhus bachuensis, Neosinacanthus planispinatus, Neosinacanthus sp.1, Hunanacanthus lixianensis , and so on. This is the first report of four species of Sinacanthus in Chongqing, proving that many gnathostomes lived here as early as 440 million years ago in the early Silurian period. A large number of spiny fossils of Sinacanthus from the Rongxi Formation had better histological structure than the existing materials, which further revealed the mystery of Sinacanthus and proved that Sinacanthus is not stem chondrichthyan. The research revealed the morphological and histological characteristics of the earliest chondrichthyan in the world.

Key words: Xiushan, Rongxi Formation, Sinacanthus, morphology, histology

中图分类号:

Q911.3

彭礼健, 赵粉花, 郑玉屏, 杨英. 重庆秀山溶溪组中华棘鱼形态学与组织学研究[J]. 曲靖师范学院学报, 2024, 43(6): 51-57.

PENG Lijian, ZHAO Fenhua, ZHENG Yuping , YANG Ying. Morphology and Histology of Sinacanthus in the Rongxi Formation of Xiushan, Chongqing[J]. Journal of Qujing Normal University, 2024, 43(6): 51-57.

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