Cyclonephelium granulatum (Horowitz, 1975) Stover and Evitt, 1978

Originally Doidyx, subsequently (and now) Cyclonephelium.
Stover and Evitt, 1978, considered this to be a problemabcal species of Cyclonephelium.
Conway and Cousminer, 1983, questioned the age assigned to this species.
Holotype: Horowitz, 1975, pl.1, fig.4
Age: Late Triassic

Original description (Horowitz, 1975): translation PKB 2024
Holotype: slide P 431, Zohar 9 survey, depth 2014 m, Upper Triassic, South of Israel.

Description: Proximal Dinoflagellate cyst. Biconical cyst, asymmetrical, apical cone a little wider, apex sometimes open. Equatorial cingulum clear, tabulation barely visible. Delicate membrane, approximately 112 IL thick, slightly granular. Very small spines, l-2 IL long, covering the cyst in a few places, irregularly distributed.

Average dimensions: 15 X 67 ll, 20 specimens.

Discussion: This species differs from other species of the Doidyx genus by the small size of its spines, which give a grainy appearance.

Origin of the name: after the granular appearance of the cyst.