†Cymatiosphaera tryphera Wicander & Wood 1981

Wicander & Wood 1981. Systematics and biostratigraphy of the organic-walled microphytoplankton from the Middle Devonian (Givetian) Silica Formation, Ohio, U.S.A. AASP Contributions Series, No. 8 1981: i-ii, 1-137