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Maghrebinia breviornata
Maghrebinia breviornata Masure, 1988
Tax. jr. synonym of Atopodinium haromense Thomas and Cox, 1988, according to Masure, 1991.
Holotype: Masure, 1988, pl.3, fig.11A-B, text-fig.4, nos.1-2
Locus typicus: Hole 627B, Leg 101, offshore Bahamas (E of Florida)
Stratum typicum: Vraconian-Middle Cenomanian
Original diagnosis: Masure, 1988, p.129
Proximate gonyaulacoid dinoflagellate cyst, single-walled with subovoidal ambitus and smooth surface, divided into a small epicyst and large hypocyst. Low granular, penitabular ornamentation. Gonyaulacoid paratabulation with large undifferentiated ventral area: ?2 preapicals 4 apicals, 1 anterior intercalary (E), 6 precingulars, 6 cingulars, 5 sulcals, 6 postcingulars, ?1 posterior intercalary, 1 antapical. Apical archeopyle, type (4A), operculum adnate: accessory archeopyle sutures well developed.
Dimensions: Holotype: length, 72 µm; breadth, 64 µm; 10 specimens measured: length, 73 (64) 60 µm, breadth, 73 (70) 66 µm.
Original description: Masure, 1988, p.129
Penitabular ornamentation weakly developed on apical paraplates, strongly expressed on precingular paraplates, and highly developed in antapical area, with intratabular granules on Z and Y. Cingular paraplates are delineated by penitabular granules on dorsal surface. The granule alignments are weakly developed between IV/V and V/VI paraplates. An additional K paraplate is present A is in contact with ai, A/ai arranyement. Paraplate 5 is camarate with respect to K. The opereulum is adnate. The principal archeopyle suture fails to open following adapieal boundaries of the parasuleus and of the precingular paraplates, 2 and li. The accessory archeopyle sutures 2/3 and 6/li are well developed.
Affinities:
Masure, 1988, p.129: Maghrebinia breviornata differs from the other species of Mughrebinia in having granular and reduced ornamentation.
Tax. jr. synonym of Atopodinium haromense Thomas and Cox, 1988, according to Masure, 1991.
Holotype: Masure, 1988, pl.3, fig.11A-B, text-fig.4, nos.1-2
Locus typicus: Hole 627B, Leg 101, offshore Bahamas (E of Florida)
Stratum typicum: Vraconian-Middle Cenomanian
Original diagnosis: Masure, 1988, p.129
Proximate gonyaulacoid dinoflagellate cyst, single-walled with subovoidal ambitus and smooth surface, divided into a small epicyst and large hypocyst. Low granular, penitabular ornamentation. Gonyaulacoid paratabulation with large undifferentiated ventral area: ?2 preapicals 4 apicals, 1 anterior intercalary (E), 6 precingulars, 6 cingulars, 5 sulcals, 6 postcingulars, ?1 posterior intercalary, 1 antapical. Apical archeopyle, type (4A), operculum adnate: accessory archeopyle sutures well developed.
Dimensions: Holotype: length, 72 µm; breadth, 64 µm; 10 specimens measured: length, 73 (64) 60 µm, breadth, 73 (70) 66 µm.
Original description: Masure, 1988, p.129
Penitabular ornamentation weakly developed on apical paraplates, strongly expressed on precingular paraplates, and highly developed in antapical area, with intratabular granules on Z and Y. Cingular paraplates are delineated by penitabular granules on dorsal surface. The granule alignments are weakly developed between IV/V and V/VI paraplates. An additional K paraplate is present A is in contact with ai, A/ai arranyement. Paraplate 5 is camarate with respect to K. The opereulum is adnate. The principal archeopyle suture fails to open following adapieal boundaries of the parasuleus and of the precingular paraplates, 2 and li. The accessory archeopyle sutures 2/3 and 6/li are well developed.
Affinities:
Masure, 1988, p.129: Maghrebinia breviornata differs from the other species of Mughrebinia in having granular and reduced ornamentation.