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Sphenorhynchia theresiae
Taxonomy
Rhynchonella theresiae was named by Parona (1882).
It was recombined as Sphenorhynchia theresiae by Kamyshan and Babanova (1973).
It was recombined as Sphenorhynchia theresiae by Kamyshan and Babanova (1973).
Sister species lacking formal opinion data