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Published online by Cambridge University Press: 20 May 2016
The capitulum and peduncular armature of Arcoscalpellum toulmini Weisbord are described on new material from the lower unnamed member of the Porters Creek Formation in Wilcox County, Alabama. A few scuta and a possible tergum of a species Zeugmatolepas Withers bearing considerable resemblance to Z. cretae (Steenstrup) were recovered from the same locality.