吴灏,丁奕,金幸生,杜天明,郑文杰,李越

• 1:浙江自然博物院
• 2:中国科学院南京地质生物研究所现代古生物学和地层学国家重点实验室
• 3:渭南师范学院环境与生命科学学院
• 4:中国科学院南京地质古生物研究所和生物演化与环境卓越创新中心

摘要(Abstract)：

浙江金衢盆地上白垩统金华组湖相红层总厚度超过2000m,义乌观音塘剖面金华组薄—中层红色粉砂岩和泥岩出露厚度约20 m,层面上保存的波痕、泥裂等沉积构造指示当时该地区是湖底经常暴露的滨湖地带。实体化石稀少,仅见少量植物化石碎片,但粉砂、黏土沉积时因含水可塑性,记录了大量脊椎动物和无脊椎动物的活动遗迹。本文首次报道其中无脊椎动物形成的遗迹化石,包括Arenicolitesisp.(沙蠾迹未定种)、Skolithos magnus (大石针迹)、Skolithos isp.(石针迹未定种)、Scoyenia isp.(斯科茵迹未定种)、Thalassinoides isp.(海生迹未定种)、Cochlichnus anguineus (蛇形螺丝迹)、Palaeophycus isp.(古藻迹未定种)、Planolites beverleyensis (贝利弗漫游迹)、Helminthopsis isp.(拟蠕形迹未定种)和Circulichnis isp.(圆环迹未定种)。遗迹化石多样性指示滨湖区动物活动频繁,形成复杂生态系统。

关键词(KeyWords)： 遗迹化石;湖相红层;金华组;上白垩统;浙江

Abstract:

Keywords:

基金项目(Foundation): 现代古生物学和地层学国家重点实验室课题(2018KF06、163120);; 中国科学院战略性先导科技专项(B类)(XDB26000000)共同资助

作者(Author): 吴灏,丁奕,金幸生,杜天明,郑文杰,李越

DOI: 10.19839/j.cnki.dcxzz.2020.0038

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