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年至2019年间发布的四部汇编成果刊布以来，研究人员从文献中梳理得到93篇关于非洲、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纪、侏罗纪与早白垩世最早期（贝里阿斯期）沟鞭藻囊孢的已发表学术成果，或是在2018年2月至2019年1月这过去12个月间正式刊出。其中55篇发表于2018至2019年，足见该时期为研究成果极为丰硕的阶段。此类研究多聚焦于欧洲晚三叠世与早侏罗世地层。本文将悉数收录这93项研究，尽可能附上其数字对象标识符（Digital Object Identifier，DOI）编号，并以关键词字符串的形式对每项研究进行说明。针对西欧的研究成果占总样本的31.2%，涉及非洲、北极、澳大拉西亚、东欧及俄罗斯的研究占比同样可观，分别为15.1%、6.5%、7.5%、9.7%与14.0%。研究覆盖度最低的区域为北美、南美及中东，占比仅为2.2%、1.1%与1.1%。