Permian basinal ammonoid sequence in Nanpanjiang area of South China—possible overlap between basinal Guadalupian and platform-based Lopingian—CORRIGENDUM

Abstract

The Permian pandemic ammonoids in Nanpanjiang Basin (41 genera, including two new genera Glenisteroceras and Fusicrimites, and 56 species, including 21 new species) are systematically described and/or discussed. New species described in this paper are Agathiceras sequaxilirae n. sp., Akmilleria parahuecoensis n. sp., Aristoceras liuzhaiense n. sp., Bamyaniceras nandanense n. sp., Bamyaniceras yangchangense n. sp., Bransonoceras longyinense n. sp., Difuntites furnishi n. sp., Emilites globosus n. sp., Eoaraxoceras spinosai n. sp., Eumedlicottia kabiensis n. sp., Fusicrimites nanpanjiangensis n. gen. n. sp., Glenisteroceras sidazhaiense n. gen. n. sp., Metaperrinites shaiwaensis n. sp., Miklukhoceras guizhouense n. sp., Neocrimites guizhouensis n. sp., Neopronorites leonovae n. sp., Popanoceras ziyunense n. sp., Properrinites gigantus n. sp., Stacheoceras shaiwaense n. sp., Svetlanoceras uraloceraformis n. sp., and Synartinskia meyaoense n. sp. A relatively complete Permian basinal ammonoid sequence with six zones has been newly recognized in South China, in ascending order, Properrinites gigantus-Svetlanoceras serpentinum, Svetlanoceras uraloceraformis-Prothalassoceras biforme, Popanoceras kueichowense-Medlicottia orbignyanus, Metaperrinites shaiwaensis-Popanoceras ziyunense, Waagenoceras sp.-Propinacoceras beyrichi, and Eoaraxoceras spinosai-Difuntites furnishi. The upper three zones are close to being duplicated from the Permian of Las Delicias, Coahuila, Mexico and west Texas, USA; while the lower three zones compare well to those of the Lower Permian in South Urals. The Eoaraxoceras-Difuntites assemblage, as an index fauna of the upper Capitanian in Coahuila, has been found from the Claystone (3rd) Member of the Shaiwa Formation with the commonly accepted Lopingian stratigraphic age. The updated Permian ammonoid biostratigraphy in South China reveals a possible overlap between the basinal Guadalupian from North America and the platform-based Lopingian from South China.