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Semiotoechia
Taxonomy
Semiotoechia is a genus. It is not extant.
It was assigned to Rhynchonellida by Sepkoski (2002); and to Ladogiidae by Williams et al. (2002).
It was assigned to Rhynchonellida by Sepkoski (2002); and to Ladogiidae by Williams et al. (2002).