Two new eurypterids (Arthropoda, Chelicerata) from the upper Silurian Yulongsi Formation of south-west China

Zhiheng Ma; Paul A. Selden; James C. Lamsdell; Tingshan Zhang; Jingwen Chen; Xi Zhang

doi:10.1017/jpa.2022.27

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7 September 2022 Two new eurypterids (Arthropoda, Chelicerata) from the upper Silurian Yulongsi Formation of south-west China

Zhiheng Ma, Paul A. Selden, James C. Lamsdell, Tingshan Zhang, Jingwen Chen, Xi Zhang

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J. of Paleontology, 96(5):1078-1086 (2022). https://doi.org/10.1017/jpa.2022.27

Abstract

Two new eurypterids, a pterygotid Erettopterus qujingensis n. sp., and a slimoniid, Slimonia sp., are described from the upper Silurian (Pridolian) Yulongsi Formation of Yunnan Province, China. Erettopterus qujingensis n. sp. is characterized by several inversely curved ramus denticles and a metastoma with a deep notch in the center. The discovery not only extends the geographic extent of the genus Erettopterus and Slimonia from Euramerica to southwest China, but also gives insight into the similarity of ecosystem structures across the Silurian world.

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Zhiheng Ma, Paul A. Selden, James C. Lamsdell, Tingshan Zhang, Jingwen Chen, and Xi Zhang "Two new eurypterids (Arthropoda, Chelicerata) from the upper Silurian Yulongsi Formation of south-west China," Journal of Paleontology 96(5), 1078-1086, (7 September 2022). https://doi.org/10.1017/jpa.2022.27

Accepted: 20 March 2022; Published: 7 September 2022

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