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  1. Article

    Open Access

    Hyolithid-like hyoliths without helens from the early Cambrian of South China, and their implications for the evolution of hyoliths

    A small hyolith, with a triangular operculum and a conical-pyramidal conch with a sharp apex, originally documented as Ambrolinevitus ventricosus, is revised based on new material from the Chengjiang biota. The o...

    Fan Liu, Christian B. Skovsted, Timothy P. Topper in BMC Ecology and Evolution (2022)