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Theonella
Taxonomy
Theonella is a genus. It is extant. It is the type genus of Theonellidae, Theonellinae.
It was assigned to Lithistida by Sepkoski (2002); and to Theonellinae by Finks et al. (2004).
It was assigned to Lithistida by Sepkoski (2002); and to Theonellinae by Finks et al. (2004).
Species lacking formal opinion data