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Phacops spedeni
Taxonomy
Phacops spedeni was named by Chatterton (1971). Its type specimen is ANU 17847, a cephalon/head (cranidium), and it is a cast. Its type locality is Chatterton Loc. A, Assemblage A, top of Receptaculites Lst, near Yass, NSW, which is in an Emsian marine lime mudstone/grainstone in the Taemas Formation of Australia.