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1. Acanthoceratoidea: Acanthoceratoidea, formerly Acanthocerataceae, is a superfamily of Upper Cretaceous ammonoid cephalopods belonging to the order Ammonitida, and comprising some 10 or so families. Members of the Acanthoceratoidea are typically strongly ribbed and have a tendency to develop prominent tubercles, although ... (Biology) [100%] 2023-01-07 [Acanthoceratoidea] [Ammonitida superfamilies]...