Author	Jan du Chêne, R., Becheler, I., Helenes, J. and Masure, E.
Year	1986b
Journal	Cahiers de Micropaléontologie, C.N.R.S. vol.1, no.3-4 pp.5-37 pl.30
Title	Les genres Diacanthum, Exiguisphaera, Occisucysta et Tehamadinium gen. nov. (kystes fossiles de Dinoflagellés)

Abstract Jan du Chêne, R., Becheler, I., Helenes, J. and Masure, E., 1986; Les genres Diacanthum, Exiguisphaera, Occisucysta et Tehamadinium gen. nov. (kystes fossiles de Dinoflagellés). Cahiers de Micropaléontologie, C.N.R.S. vol.1, no.3-4 pp.5-37 pl.30 Abstract: The morphological analysis of the holotypes from the species attributed to up to now to the genus Occisucysta reveals two morphotypes which differ in the structure of the cyst wall (cavate or acavate) and in some details of paratabulation. These differences are considered important enough to emend. the genus concept of Occisucysta and to describe a new genus, Tehamadinium. Three new species are also described.: Occisucysta duxburyi, Tehemedinium daveyi, T. dodekovae. Two other genera are also revised: Diacanthum and Exiguisphaera.