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Mancodinium semitabulatum ssp. semitabulatum
Mancodinium semitabulatum ssp. semitabulatum
Autonym.
Holotype: Morgenroth, 1970, pl.12, fig.3
Locus typicus: Canal Hildesheim, E of Luehnde, Germany
Stratum typicum: Late Pliensbachian
Translation Below, 1987: Translation Bureau, Secretary of State Canada, 1988
Description: Below, 1987, p. 23-27
Arrangement of vesicles/plates of the dinoflagellate amphiesma PR, 4", 4a, 7"", 7c, 6""", 2"""", as, FM subdivided into several periflagellar areae, ls, rs, ps; pentagonal 1"""" and hexagonal 2"""" partiform, omegaform ps very large; primtegulate epithecal series connected sinistrally with as; growth of thecal plates peridinoidal. Cyst habit proximate, acavate, ovaloidal, epicyst shorter than hypocyst, apically rounded, indistinctly acuminate, or with short apical horn, antapex rounded or asymmetrical with rather dextral apical bulge, equatorial section circular or slightly oval, maximal diameter at the posterior cingular margin; wall composed of pedium and prismatic, rigid luxuria; surface shagreenate, granular, ornamentation consisting of short gemmae or tubercles arranged in peniareate rows or intraareate groups, seldom diffusely scattered; areation marked by sometimes weakly indented limbi free of ornament, narrow finate grooves without luxuria, and primary archeopyle sutures; areation formula NR, PR/cop, pop, NR"/4", NRa/4a, NR""/7"", NRc/7c, NR"""/6""", NR""""/1"""", NRs/as, FM, ls, rs, ps; PR unstructured or cop in the form of a horseshoe-shaped bulge moiunted on the apex of the apical protuberance or horn, pop a closed or U-shaped bulge (open ventrally) around cop slightly to the posterior; four small apicals arranged in a symmetrical cloverleaf pattern around PR, steno VI 1" (V), VII 2" (VL), deltaform linteloid 3" (D), VI 4" (VR); four anterior intercalaries, caroidal 1a (DL), fastigiate 2a (DDL), deltaform inverse-camerate 3a (DDR), deltaform inverse-camerate 4a (RDR); 7precingulars of uniform size, anteriorly geniculate V-nE 1"" (VL), anteriorly geniculate V-nE 2"" (LDL), anteriorly geniculate V-nE 3"" (DDL), anteriorly geniculate V-nE 4"" (D), anteriorly geniculate V-nE 5"" (DR) or finis 4""/5"" dorsal, anteriorly geniculate V-nE 6"" (RVR), anteriorly geniculate V-nE 7"" (VVR); cingulum broad, level, or indented, helicoid laevorotatory, heptapartite, lati 1c to 6c, iso 7c; 6 postcingulars, posteriorly linear V-nE 1""" (VVL), posteriorly linear IV-nE 2""" (VL), posteriorly geniculate V-nE 3""" (DL), posteriorly linear IV-nE 4""" (D), posteriorly linear IV-nE 5""" (RDR), posteriorly linear IV-nE 6""" (VR); 2 antapicals partiform, V 1"""" (VL), and VI 2"""" polar or displaced towards R; sulcus partite, level ro shallowly indented, comprising steno as, small rs and ls, large omegaform ps bulging into 2""""; archeopyle epicystal, PR + 1" + 2" + 3" + 4" + 1a + 2a + 3a + 1"" + 2"" + 3"" + 4"" + 5"" + 6"" + 7""; operculum secate, foederate (partim) and solvate (partim), general opercular formula (PR + 1" + 2" + 3" + 4" + 1a + 2a + 3a + 4a)s + 1""s + 2""s + 3""s + 4""s + 5""s + 6""s + 7""s.
Autonym.
Holotype: Morgenroth, 1970, pl.12, fig.3
Locus typicus: Canal Hildesheim, E of Luehnde, Germany
Stratum typicum: Late Pliensbachian
Translation Below, 1987: Translation Bureau, Secretary of State Canada, 1988
Description: Below, 1987, p. 23-27
Arrangement of vesicles/plates of the dinoflagellate amphiesma PR, 4", 4a, 7"", 7c, 6""", 2"""", as, FM subdivided into several periflagellar areae, ls, rs, ps; pentagonal 1"""" and hexagonal 2"""" partiform, omegaform ps very large; primtegulate epithecal series connected sinistrally with as; growth of thecal plates peridinoidal. Cyst habit proximate, acavate, ovaloidal, epicyst shorter than hypocyst, apically rounded, indistinctly acuminate, or with short apical horn, antapex rounded or asymmetrical with rather dextral apical bulge, equatorial section circular or slightly oval, maximal diameter at the posterior cingular margin; wall composed of pedium and prismatic, rigid luxuria; surface shagreenate, granular, ornamentation consisting of short gemmae or tubercles arranged in peniareate rows or intraareate groups, seldom diffusely scattered; areation marked by sometimes weakly indented limbi free of ornament, narrow finate grooves without luxuria, and primary archeopyle sutures; areation formula NR, PR/cop, pop, NR"/4", NRa/4a, NR""/7"", NRc/7c, NR"""/6""", NR""""/1"""", NRs/as, FM, ls, rs, ps; PR unstructured or cop in the form of a horseshoe-shaped bulge moiunted on the apex of the apical protuberance or horn, pop a closed or U-shaped bulge (open ventrally) around cop slightly to the posterior; four small apicals arranged in a symmetrical cloverleaf pattern around PR, steno VI 1" (V), VII 2" (VL), deltaform linteloid 3" (D), VI 4" (VR); four anterior intercalaries, caroidal 1a (DL), fastigiate 2a (DDL), deltaform inverse-camerate 3a (DDR), deltaform inverse-camerate 4a (RDR); 7precingulars of uniform size, anteriorly geniculate V-nE 1"" (VL), anteriorly geniculate V-nE 2"" (LDL), anteriorly geniculate V-nE 3"" (DDL), anteriorly geniculate V-nE 4"" (D), anteriorly geniculate V-nE 5"" (DR) or finis 4""/5"" dorsal, anteriorly geniculate V-nE 6"" (RVR), anteriorly geniculate V-nE 7"" (VVR); cingulum broad, level, or indented, helicoid laevorotatory, heptapartite, lati 1c to 6c, iso 7c; 6 postcingulars, posteriorly linear V-nE 1""" (VVL), posteriorly linear IV-nE 2""" (VL), posteriorly geniculate V-nE 3""" (DL), posteriorly linear IV-nE 4""" (D), posteriorly linear IV-nE 5""" (RDR), posteriorly linear IV-nE 6""" (VR); 2 antapicals partiform, V 1"""" (VL), and VI 2"""" polar or displaced towards R; sulcus partite, level ro shallowly indented, comprising steno as, small rs and ls, large omegaform ps bulging into 2""""; archeopyle epicystal, PR + 1" + 2" + 3" + 4" + 1a + 2a + 3a + 1"" + 2"" + 3"" + 4"" + 5"" + 6"" + 7""; operculum secate, foederate (partim) and solvate (partim), general opercular formula (PR + 1" + 2" + 3" + 4" + 1a + 2a + 3a + 4a)s + 1""s + 2""s + 3""s + 4""s + 5""s + 6""s + 7""s.