文献类型：期刊文献

英文题名：A new ammonite genus of the Xiaowa Formation from Guanling Counties, Guizhou Province, China

作者：Mao, Kainan Yang, Wei Huang, Yongling Ma, Zhiheng

第一作者：Mao, Kainan;毛凯楠

通信作者：Huang, YL[1];Ma, ZH[1];Ma, ZH[2]

机构：[1]Guizhou Inst Technol, Sch Resources & Environm Engn, Guiyang, Guizhou, Peoples R China;[2]Geol Museum Guizhou, Guiyang, Guizhou, Peoples R China;[3]Southwest Petr Univ, Sch Geosci & Technol, Chengdu, Sichuan, Peoples R China;[4]China Geol Survey Kunming Gen Survey Nat Resources, Kunming Gen Survey Nat Resources Ctr, Kunming, Yunnan, Peoples R China

第一机构：贵州理工学院资源与环境工程学院

通信机构：corresponding author), Geol Museum Guizhou, Guiyang, Guizhou, Peoples R China;corresponding author), China Geol Survey Kunming Gen Survey Nat Resources, Kunming Gen Survey Nat Resources Ctr, Kunming, Yunnan, Peoples R China.

年份：2024

外文期刊名：HISTORICAL BIOLOGY

收录：;Scopus(收录号：2-s2.0-85200341181);WOS:【SCI-EXPANDED(收录号:WOS:001283844600001)】；

基金：The work was supported by the Study on internal causes of karst canyon morphological characteristics based on the multiple constraints of geological "big data" [[2019]1148 (No.)]; Guizhou Provincial Key Technology R&D Program [[2022]GEN257]; Guizhou Provincial Basic Research Program [[2019]1148 (No.)]; Popular science research of multi-dimensional digitization of palaeontological fossils and its ecology-taphonomy, a case study of Triassic Marine reptiles in Geological Museum of Guizhou [257]; Guizhou Provincial Key Technology R&D Program [[2023]GEN 167(No.)]; Digital Construction and science Popularization Research of Guizhou Geological Museum based on Digital Twin Technology and Guizhou Provincial Basic Research Program (Natural Science) [[2023]GEN167].

语种：英文

外文关键词：Guanlingoceras guanlingensis n. gen. n. sp; late early Carnian (Julian 2); Xiaowa Formation; China

摘要：Two ammonoids, Guanlingoceras guanlingensis n. gen. n. sp. and Neoprotrachyceras sp. are described from the late early Carnian (Julian 2) Xiaowa Formation of Guizhou province, China. Guanlingoceras guanlingensis n. gen. n. sp. is characterised by ventral spirals which are duplicated with small nodes and robust spines arranged in an alternating pattern. These discoveries further not only enrich the ammonite biodiversity in South China but also indicate the age of Xiaowa Formation should be assigned to Julian 2