Classification of the genus Tetravirga
G. †Tetravirga Frizzell and Exline 1955
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†Tetravirga etheridgei Frizzell and Exline 1955
†Tetravirga fordelensis Frizzell and Exline 1955
†Tetravirga gracilis Mostler 1968
†Tetravirga imperforata Frizzell and Exline 1955
†Tetravirga liassica Mostler 1968
†Tetravirga perforata Mostler 1968