Reutlingia delmensis Below, 1987

Now Susadinium. Originally Reutlingia, subsequently (and now) Susadinium.
Holotype: Below, 1987, pl.18, figs.1,8; Fensome et al., 1993, p.1112, fig.1
Locus typicus: Delme, south of Metz Lorraine, France
Stratum typicum: Toarcian
Translation Below, 1987: Fensome et al., 1993

Original description: Below, 1987, p.135-136
Arrangement of vesicles/plates on the dinoflagellate amphiesma cop, pop, cap, 5", 3a, 7""-6", 7c, 5""", 2"""", as, y, z, ps; 1"""" and 2"""" located symmetrically on either side of the dorsoventral plane; large ps omegaform; growth type of thecal plates peridinioid.
Cyst form proximate, acavate to limbacavate, peridinioid, epicyst coniform to tentoriate, separated from the smaller, shallowly coniform to semi-ovaloidal hypocyst by the very broad, deeply indented, weakly helicoid laevorotatory cingulum with its angular margins; intraareate surfaces in the adcingular region of the cyst protuberant, cross-section oval, reniform; size small; wall composed of thin pedium and luxuria, luxuria comprising only densely arranged granules in sharply bounded intraareate regions and the smooth tectum over 1"""", which is free from granules, limbi broad, smooth, scabrate, free of ornament; areation XFR/cop, pop, cap, 5" (also NR1"), 3a, 7"-6", Xc 5""", 2"""", Xs; cop very small, circular, shaped like a peg or a ring, horseshoe-shaped pop and small rhombic cap between 1"/5" and pop; 5 apicals, VI 1" (V), large VI 2" (VL), deltaform inverse-camerate 3" (DL), deltaform inverse-camerate 4" (DR), large VIII 5" (VR); 3 anterior intercalaries, linteloid la (LDL), VI or VII 2a (D), inverse-camerate 3a (DR); 7 precingulars, anteriorly geniculate V-nE 1" (WL), anteriorly geniculate VnE 2n (LVL), anteriorly linear IV-nE 3" (LDL), anteriorly geniculate V-nE 4" (DDL) or anteriorly linear IV-nE 4n with a heptagonal area 2a, anteriorly geniculate V-nE 5" (DDR), finis 4"/5" dorsal, anteriorly geniculate V-nE 6" (R), anteriorly linear IV-nE 7" (WR) only seldom connected with 1", or anteriorly geniculate V-nE 1", anteriorly geniculate V-nE 2", anteriorly geniculate V-nE 3", anteriorly geniculate V-nE 4", anteriorly geniculate VnE 5", anteriorly linear IV-nE 6n; cingulum nonareate; 5 postcingulars, VnE 1"" (VVL), posteriorly linear IV-nE 2""" (L), posteriorly geniculate V-nE 3""" (DDL), posteriorly linear IV-nE 4""" (DR), finis 3"""/4""" dorsal, posteriorly linear IV-nE 5""" (VR); large V 1"""" (L) and large V 2"""" on each side of the antapex; sulcus nonareate; archeopyle anterior intercalary 2a; operculum monoareate, adnate to the precingulars, opercular formula 2aa.
Size: Holotype: length 36 µm, breadth 25 µm.