Classification of Chernyak 1963
G. †Brachythyrina Frederiks 1929
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†Brachythyrina byrangi Chernyak 1963
†Brachythyrina sibirica Chernyak 1963
G. †Composita Brown 1849
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†Composita bajkurica Chernyak 1963
†Composita tareica Chernyak 1963
G. †Spirifer Sowerby 1818
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†Spirifer byrangi Chernyak 1963
†Spirifer engelgardthi Chernyak 1963
†Spirifer holodnensis Chernyak 1963
†Spirifer piassinaensis Chernyak 1963