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†Trachyvalia Yan 1995

urn:lsid:organismnames.com:name:1157087

Microreference

365

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†Trachyvalia Yan 1995

Yan 1995. Shale facies microfloras from lower Changcheng System in Kuancheng, Hebei and comparison with those of neighboring areas. Acta Micropalaeontologica Sinica, 12(4), December 1995: 349-373