Classification of Yanagida and Hirata 1969
G. †Uncinunellina Grabau 1932
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†Uncinunellina shikokuensis Yanagida and Hirata 1969
G. †Phricodothyris George 1932
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†Phricodothyris asiatica Chao 1929
†Phricodothyris echinata Chao 1929