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Chonaxis
Taxonomy
Chonaxis was named by Milne-Edwards and Haime (1851) [Sepkoski's age data: C l]. It is not extant.
It was assigned to Acrocyathinae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Acrocyathinae by Hill (1981); and to Rugosa by Sepkoski (2002).