The Triassic–Jurassic Upper Karoo Group of the Mid-Zambezi Basin (MZB; Zimbabwe) includes a thick succession of terrestrial sediments with high palaeontological potential that has been neglected since the 1970s. Here, we review the Upper Karoo Group stratigraphy, present detailed sedimentological work and identify new vertebrate-bearing sites at several measured sections along the southern shore of Lake Kariba. These fossil-bearing sites fall within the Pebbly Arkose and Forest Sandstone formations, and are the first to be recorded from the region since the discovery of Vulcanodon karibaensis nearly 50 years ago. The unique and diverse assemblage of aquatic and terrestrial fauna reported includes phytosaurs, metoposaurid amphibians, lungfish, non-dinosaurian archosauromorphs and non-sauropod sauropodomorph dinosaurs. This improvement of Upper Karoo Group biostratigraphy is important in refining its temporal resolution, and impacts both regional and global studies. Finally, the new fossil sites demonstrate the palaeontological importance of the MZB and its role in providing a holistic understanding of early Mesozoic ecosystems in southern Gondwana.

中文翻译：

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津巴布韦中赞比西盆地上卡鲁群的沉积学和古生物学：新地点及其对盆地间对比的意义

中赞比西盆地（MZB；津巴布韦）的三叠纪-侏罗纪上卡鲁组包括一系列厚厚的陆相沉积物，这些沉积物具有很高的古生物学潜力，自 1970 年代以来一直被忽视。在这里，我们回顾了上卡鲁群地层学，介绍了详细的沉积学工作，并在卡里巴湖南岸的几个测量剖面确定了新的脊椎动物承载地点。这些化石遗址位于 Pebbly Arkose 和森林砂岩地层内，是自发现卡里巴火龙近50年前。报告的独特而多样的水生和陆生动物群包括植龙类、甲龙类两栖动物、肺鱼、非恐龙类主龙类和非蜥脚类蜥脚类恐龙。上卡鲁群生物地层学的这种改进对于改进其时间分辨率很重要，并影响区域和全球研究。最后，新的化石遗址证明了 MZB 的古生物学重要性及其在全面了解冈瓦纳南部早期中生代生态系统方面的作用。