Cladopyxidium velatum, Below, 1987

Junior homonym: Cladopyxidium velatum Marheinecke, 1992.

Holotype: Below, 1987, pl.18, fig.1-3 (SEM)
Locus typicus: Caster, along Albert Canal, Belgium
Stratum typicum: Late Maastrichtian

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Original description: [Below, 1987, p. 34]: (Translation: Bureau of Translation, Secretary of State Canada, 1988, p. 95-97):

Description:
Arrangement of vesicles/plates on the dinoflagellate amphiesma cop, pop, cap, 4", 4a, 7"", 7c, 6""", 2"""", as, FM subdivided into several periflagellar platelets, ls, rs, ps; pentagonal 1"""" and hexagonal 2"""" partiform, omegaform ps very large; adelopore on suture 1"/4"; type of thecal growth unknown.
Cyst habit proximochorate, acavate, ovaloidal, hypocyst twice as long as epicyst, equatorial section circular; size small;
wall composed of thin pedium and luxuria; luxuria thin, spongy, fused distally into a tectum which may be perforated locally; the tegillum forms smooth-walled, finate septa expanding distally to form a supratectum spread above the areae; the glabrous supratectum is often incomplete, formed only along area margins but interrupted over intraareate regions, spanning the areae like a catwalk or folded back towards the endoblast to form large vacuoles; fines can be recognized on the supratectum from a pattern of fine sutures and narrow bands with a shagreenate to fine-grained surface;
areation formula XPR/cop, pop, NR cap/cap, 4", 4a, 7"", (sic, no cingulars mentioned) 6""", 2"""", as, ls, ps; cop minute, circular and surrounded by an annular pop, small planate cap (V) usually rudimentary;
- 4 apicals, steno VII 1" (V), small steno 2" (DL), small VI 3" (VR), steno V 4" (VVR);
- 4 small anterior intercalaries, caroidal 1a (LDL), deltaform inverse-camerate 2a (DL), deltaform fastigiate 3a (DDR), deltaform inverse-camerate 4a (R);
- 7 precingulars, quasi-trigonal IV-nE 1"" (VVL), anteriorly bigeniculate VI-nE 2"" (LVL), anteriorly geniculate V-nE 3"" (DL), anteriorly geniculate V-nE 4"" (D), anteriorly geniculate V-nE 5"" (DR), latiform anteriorly geniculate V-nE 6"" (VR), small anteriorly geniculate V-nE 7"" (VVR);
- cingulum weakly helicoid levorotatory, heptapartite with latiform 1c to 6c and iso fastigiate 7c;
- 6 postcingulars, posteriorly linear V-nE 1""" (VVL), posteriorly linear IV-nE 2""" (LVL), posteriorly geniculate V-nE 3""" (LDL), posteriorly linear IV-nE 4""" (D), posteriorly linear IV-nE 5""" (DR), posteriorly linear V-nE 6""" (VR);
- 2 antapicals partiform, V 1"""" descending towards VL and VI 2"""" descending towards R;
- sulcus comprising small VIas, small, rounded FM subdivided into several minute areae, small VI ls, and large steno omegaform VI ps;
- archaeopyle apical, PR+2"+3"; operculum foederate, secate, general opercular formula (PR+2"+3")(s).

Dimensions of holotype:
length 27 µm, breadth 20 µm, thickness 20 µm.

Affinities:
Cladopyxidium velatum is related to C. saeptum (Morgenroth, 1968) Stover and Evitt, 1978, which, however, does not form a supratectum above the areae.