Back
Foucheria modesta
Foucheria modesta Monteil, 1992
Holotype: Monteil, 1992, pl.III, fig.1-4
Locus typicus: Lussas section, Villeneuve-de-Berg, ArdÞche, SE France
Stratum typicum: Late Berriasian-Early Valanginian
Translation Monteil, 1992: LPP
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Foucheria modesta, Monteil, 1992a. According to Monteil (1992a) is a proximochorate, acavate, ovoidal, cyst with a large equatorial diameter. Ornamentation consists of small, solid isolated processes, which are distally closed and bulbous at the base. The processes are concentrated locally into groups and are intratabular or centrotabular. Tabulation gonyaulacoid ?pr, 4', ?oa, 6", 6c, 6"’, 1p, 1"”, ?s. Archeopyle apical with attached operculum. Size:length 52.5-70 µm, width 48-65 µm. Process length 8-12.5 µm.
--------------------------------------------------
Original diagnosis: Monteil, 1992, p. 278 (identical to that of the genus)
Synopsis: Cyst proximochorate, acavate, ovoidal, with a very large equatorial diameter; ornamentation formed by small solid isolated processes, identical in shape and size, distally closed and knobbly at the base; processes distributed in small, dense, intratabular to centrotabular surfaces; growth bands present; paratabulation gonyaulacoid, indicated by low parasutural septa and by the ornamentation; formula: ?pr, 4', ?0a, 6'', 6c, 6''', 1p, 1''', ?xs; archaeopyle apical, type (tA)(a); operculum adnate.
Diagnosis:
Shape: Cyst proximochorate, acavate, ovoidal with a very large equatorial diameter. Apex more or less clearly marked by a slight apical bulge.
Wall structure: Autophragm only.
Wall features: Low parasutural septa; growth bands present; ornamentation formed by small solid isolated processes, identicl in shape and size, distally closed, with a knobbly base; processes ditributed in small dense surfaces, in intratabular (precingular or postcingular series) to centrotabular (antapical) position.
Archaeopyle: Apical, type (tA)(a). Operculum adnate.
Paratabulation: Indicated by the low parasutural septa, the growth bands and the ornamentation; gonyaulacoid, formula: ?pr, 4', ?0a, 6'', 6c, 6''', 1p, 1'''', ?xs. Only observed in cracked specimens and in some fragments.
Paracingulum: Indicated by the parasutural septa.
Parasulcus: Not clearly observed.
Size: Medium, about 50 to 60 Ám broad.
Dimensions:
Holotype (slightly compressed): length x width of central body = 57 x 60 Ám; process length = 10-12.5 Ám.
Specimen 1: length x width of central body = 52.5 x 59 Ám; process length = 8-10 Ám.
Specimen 3 (cracked): lenght x width of central body = 70 x 65 Ám; process length = 7.5-11 Ám.
Variations (12 specimens): central body width = 48-59 Ám; process length = 8-12.5 Ám.
Holotype: Monteil, 1992, pl.III, fig.1-4
Locus typicus: Lussas section, Villeneuve-de-Berg, ArdÞche, SE France
Stratum typicum: Late Berriasian-Early Valanginian
Translation Monteil, 1992: LPP
--------------------------------------------------
G.L. Williams short notes on species, Mesozoic-Cenozoic dinocyst course, Urbino, Italy, May 17-22, 1999 - LPP VIEWER CD-ROM 99.5.
Foucheria modesta, Monteil, 1992a. According to Monteil (1992a) is a proximochorate, acavate, ovoidal, cyst with a large equatorial diameter. Ornamentation consists of small, solid isolated processes, which are distally closed and bulbous at the base. The processes are concentrated locally into groups and are intratabular or centrotabular. Tabulation gonyaulacoid ?pr, 4', ?oa, 6", 6c, 6"’, 1p, 1"”, ?s. Archeopyle apical with attached operculum. Size:length 52.5-70 µm, width 48-65 µm. Process length 8-12.5 µm.
--------------------------------------------------
Original diagnosis: Monteil, 1992, p. 278 (identical to that of the genus)
Synopsis: Cyst proximochorate, acavate, ovoidal, with a very large equatorial diameter; ornamentation formed by small solid isolated processes, identical in shape and size, distally closed and knobbly at the base; processes distributed in small, dense, intratabular to centrotabular surfaces; growth bands present; paratabulation gonyaulacoid, indicated by low parasutural septa and by the ornamentation; formula: ?pr, 4', ?0a, 6'', 6c, 6''', 1p, 1''', ?xs; archaeopyle apical, type (tA)(a); operculum adnate.
Diagnosis:
Shape: Cyst proximochorate, acavate, ovoidal with a very large equatorial diameter. Apex more or less clearly marked by a slight apical bulge.
Wall structure: Autophragm only.
Wall features: Low parasutural septa; growth bands present; ornamentation formed by small solid isolated processes, identicl in shape and size, distally closed, with a knobbly base; processes ditributed in small dense surfaces, in intratabular (precingular or postcingular series) to centrotabular (antapical) position.
Archaeopyle: Apical, type (tA)(a). Operculum adnate.
Paratabulation: Indicated by the low parasutural septa, the growth bands and the ornamentation; gonyaulacoid, formula: ?pr, 4', ?0a, 6'', 6c, 6''', 1p, 1'''', ?xs. Only observed in cracked specimens and in some fragments.
Paracingulum: Indicated by the parasutural septa.
Parasulcus: Not clearly observed.
Size: Medium, about 50 to 60 Ám broad.
Dimensions:
Holotype (slightly compressed): length x width of central body = 57 x 60 Ám; process length = 10-12.5 Ám.
Specimen 1: length x width of central body = 52.5 x 59 Ám; process length = 8-10 Ám.
Specimen 3 (cracked): lenght x width of central body = 70 x 65 Ám; process length = 7.5-11 Ám.
Variations (12 specimens): central body width = 48-59 Ám; process length = 8-12.5 Ám.