Dodekovia tabulata Below, 1987

Now Susadinium?. Originally Dodekovia, subsequently (and now) Susadinium?.
Holotype: Below, 1987, pl.13, figs.1,4,8,12-13; Fensome et al., 1993, p.1365, figs.1,3,5-6
Locus typicus: Eastern slope of Knerten Hill, near DeGeerdalen, Spitsbergen
Stratum typicum: Toarcian
Translation Below, 1987: Fensome et al., 1993

Original description: Below, 1987, p.123
Arrangement of vesicles/plates on the dinoflagellate amphiesma cop, pop, cap, 5", 3a, 7""-6", 7c, 5""", 2"""", as, x, y, z; 1"""" and 2"""" located symmetrically on either side of the dorsoventral plane; growth of thecal plates peridinioid.
Cyst form acavate, ovoidal, epicyst coniform, also with minute apical protuberance, larger than the semispheroidal hypocyst, both halves separated by a shallowly to deeply indented, weakly helicoid, laevorotatory cingulum, equatorial cross-section circular; size small; wall composed of thin pedium and luxuria, luxuria limbate, low, finate, distally smooth, also forming septa with t-shaped expansions or firm ridges, thick intraareate luxuria forming very prominent platforms consisting of a peniareate septum and intraareate spongy-granular filling which usually fuses distally to form a scabrate tegillum; complete reduction of the luxuria possible; areation determined by fines, limbi, and intraareate ornaments XPR/cop, pop, cap, 5", 3a, 7"", 7c, 5""", 2"""", as, x, y, z, ps; cop very small, circular, shaped like a peg or a ring, pentagonal to horseshoe-shaped pop and small rhombic cap between 1"/5" and pop; 5 apicals, steno 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), inversecamerate 3a (DR); 7 precingulars, anteriorly geniculate V-nE ln (VVL), anteriorly geniculate V-nE 2" (LVL), anteriorly linear IV-nE 3" (LDL), anteriorly geniculate V-nE 4" (DDL) or anteriorly linear 4" with a heptagonal area 2a, anteriorly geniculate V-nE 5" (DDR), finis 4"/5" dorsal, anteriorly geniculate V-nE 6" (R), anteriorly linear V-nE 7"" (VVR) only seldom connected with 1"; or anteriorly geniculate V-nE 1"", anteriorly geniculate V-nE 2"", anteriorly geniculate V-nE 3", anteriorly geniculate VnE 4"", anteriorly geniculate V-nE 5", anteriorly linear IV-nE 6"; cingulum heptaareate, helicoid, laevorotatory, dextrocamerate V 1c (V), latifastigiate 2c (VL), lati VII 3c (LDL), latifastigiate 4c (D), lati VI 5c (DR), laticamerate 6c (VR),VIII 7c (V); 5 postcingulars, V-nE 1""" (VVL), posteriorly linear IVnE 2""" (L), posteriorly geniculate V-nE 3""" (DDL), posteriorly linear IV-nE 4""" (DR), finis 3"""/4""" dorsal, posteriorly linear V-nE 5""" (VR); large V 1"""(L) and large V 2""" (R) on either side of the antapex; sulcus from large steno VII as usually in contact with 5" and 7", small caroid field x, camerate space y, latiplanate area z, large steno VI ps; archeopyle anterior intercalary, 2a; operculum monoareate, secate, opercular formula 2a[s].
Size: Holotype: length 27 Ám, breadth 22 Ám, thickness 22 Ám.