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    李国郡, 陈宇, 许国雨, 郑大贺, 王存柱, 任龙, 杨帆, 叶蕴琪, 毛永新. 吉林蛟河盆地下白垩统大拉子组介形虫化石组合特征[J]. 地质与资源, 2023, 32(1): 14-20. DOI: 10.13686/j.cnki.dzyzy.2023.01.002
    引用本文: 李国郡, 陈宇, 许国雨, 郑大贺, 王存柱, 任龙, 杨帆, 叶蕴琪, 毛永新. 吉林蛟河盆地下白垩统大拉子组介形虫化石组合特征[J]. 地质与资源, 2023, 32(1): 14-20. DOI: 10.13686/j.cnki.dzyzy.2023.01.002
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    LI Guo-jun, CHEN Yu, XU Guo-yu, ZHENG Da-he, WANG Cun-zhu, REN Long, YANG Fan, YE Yun-qi, MAO Yong-xin. CHARACTERISTICS OF OSTRACODA FOSSIL ASSEMBLAGE OF THE LOWER CRETACEOUS DALAZI FORMATION IN JIAOHE BASIN, JILIN PROVINCE[J]. Geology and Resources, 2023, 32(1): 14-20. DOI: 10.13686/j.cnki.dzyzy.2023.01.002
    Citation: LI Guo-jun, CHEN Yu, XU Guo-yu, ZHENG Da-he, WANG Cun-zhu, REN Long, YANG Fan, YE Yun-qi, MAO Yong-xin. CHARACTERISTICS OF OSTRACODA FOSSIL ASSEMBLAGE OF THE LOWER CRETACEOUS DALAZI FORMATION IN JIAOHE BASIN, JILIN PROVINCE[J]. Geology and Resources, 2023, 32(1): 14-20. DOI: 10.13686/j.cnki.dzyzy.2023.01.002
    shu

    吉林蛟河盆地下白垩统大拉子组介形虫化石组合特征

    CHARACTERISTICS OF OSTRACODA FOSSIL ASSEMBLAGE OF THE LOWER CRETACEOUS DALAZI FORMATION IN JIAOHE BASIN, JILIN PROVINCE

      摘要
    • 摘要: 蛟河盆地内广泛出露下白垩统大拉子组, 并在保家村附近产出介形虫、叶肢介和植物碎片等化石. 通过1:2 000地质剖面实测中分层采集化石, 在保家村北侧剖面的大拉子组中获得介形虫5属9种, 其中包括1个相似种和6个未定种, 分别是: Cypridea paracavernosa, C. concinaformis, C. sp., Candoniella cf. candida, Candoniella sp., Scabriculocypris sp., Mongolianella sp., Candona sp. 1和Candona sp. 2. 结合前人的化石发现, 建立了Cypridea paracavernosa-C. concinaformis组合, 该介形虫组合可以与吉林延边大拉子组介形虫进行对比, 时代可能为早白垩世晚期.

       

      Abstract: The Lower Cretaceous Dalazi Formation is widely developed in Jiaohe Basin, with ostracoda, conchostraca and plant debris fossils occurred near Baojia village. Through the stratified fossil collection in 1:2 000 surveyed geological section, 5 genera with 9 species of ostracoda are discovered from Daliazi Formation at the section on the north of Baojia village, including 1 similar species and 6 undefined species: Cypridea paracavernosa, C. concinaformis, C. sp., Candoniella cf. candida, Candoniella sp., Scabriculocypris sp., Mongolianella sp., Candona sp. 1 and Candona sp. 2, respectively. Combined with previous fossil findings, the Cypridea paracavernosa-C. concinaformis assemblage is established, which could be compared with the ostracoda of Daliazi Formation in Yanbian, Jilin Province, and the age was probably the late Early Cretaceous.

       

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