The literature on Triassic, Jurassic and earliest Cretaceous dinoflagellate cysts: supplement 4

Since the publication of four compilations issued between 2012 and 2019, 93 further published contributions on Triassic, Jurassic and earliest Cretaceous (Berriasian) dinoflagellate cysts from Africa, North America, South America, the Arctic, Australasia, East Europe, West Europe, the Middle East and Russia have been discovered in the literature, or were issued in the last 12 months (i.e. between February 2018 and January 2019). Of these, 55 were published during 2018 and 2019, making this period a very productive one. These studies are mostly on the Late Triassic and Early Jurassic of Europe. All the 93 items are listed herein with digital object identifier (doi) numbers where available, as well as a description of each item as a string of keywords. Publications on West Europe comprise 31.2% of the total, and items on Africa, the Arctic, Australasia, East Europe and Russia are also significant (15.1, 6.5, 7.5, 9.7 and 14.0%, respectively). The least well-represented regions are North America, South America and the Middle East (2.2, 1.1 and 1.1%, respectively).

自2012至2019年间发布的四部汇编成果出版以来，研究人员从公开文献中梳理出93篇新增的已发表研究成果，主题涵盖非洲、北美、南美、北极地区、澳大拉西亚、东欧、西欧、中东及俄罗斯的三叠系、侏罗系及早白垩世（贝里阿斯阶）沟鞭藻囊孢，其中部分成果于2018年2月至2019年1月的近12个月内正式刊发。上述93项成果中有55篇发表于2018至2019年，足见该时段的研究产出极为丰硕。此类研究多聚焦于欧洲的晚三叠世及早侏罗世地层。本文将悉数收录这93项研究，对可获取的文献均附上数字对象标识符（digital object identifier, DOI），并以关键词串的形式对每项研究进行简要说明。针对西欧的研究成果占总样本量的31.2%，非洲、北极地区、澳大拉西亚、东欧与俄罗斯的相关研究占比也较为可观，分别为15.1%、6.5%、7.5%、9.7%与14.0%。研究覆盖程度最低的区域为北美、南美与中东，占比分别仅为2.2%、1.1%与1.1%。