Canistrolithus valliformis Jordan & Chamberlain, 1993
References
Jordan, R. W., Chamberlain, A. H. L., 1993. Canistrolithus valliformis gen. et sp. nov. (Syracosphaeraceae, Prymnesiophyta), a comparison with the genus Alisphaera. Phycologia32(5), 373-378.