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Lejeunecysta decorinassa
From Fensome et al., 2019:
Lejeunecysta decorinassa Srivastava, 1995, p.312,314, pl.30, figs.6–7. Holotype: Srivastava, 1995, pl.30, fig.7. Age:
Maastrichtian.
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Original description Srivastava, 1995:
Description-Cysts pentagonal with a single apical and two antapical horns; apical horn short but distinct with rounded apex; antapical horns two, unequal with acuminate apices; wall layers not distinct, probably autophragm only, parasutural features absent, archeopyle only: archeopyle intercalary, type 1 (2a), hexagonal. sometimes operculum attached, antapical margin near paracingulum margin: paracingulum indicated in the widest part as broad folds; parasulcus indicated by a longitudinal concavity in the hypocyst.
Size measurements-Total length x breadth range 109-117 x 99-104 !-Lm
Holotype--PI. 30, fig. 7: photomicrograph reference no. 85030/4: objective X 40; microscope locationhorizontal 34.0/vertical 112.0; size-total length x breadth 117 x 99 !-Lm; sample no. CRC 32140-1/Slide 2: locality DW12. the Navarro Group, the Corsicana Clay. Navarro County, Texas, Maastrichtian.
Paratype--PI. 30, fig. 6; photomicrograph reference no. 85029/14; objective X 40: microscope location horizontal 52.0/vertical 101.0: size-total length x breadth 109 x 104 !-Lm; sample no. CRC 32140-1/S1ide 4: locality DW12, the Navarro Group. the Corsicana Clay. Navarro County, Texas, Maastrichtian.
Remarks--Lejeunecysta decorinassa is distinct from L. fallax and L. communis in being larger having distinct in apical and antapical horns, and an autophragm with granulose wrinkles; and from Phelodinium magnificum in having autophragm only.
Name derivation-I. decoris = ornamented: nassa = wicker basket with narrow neck. or fish-trap; decor + i + nassa = ornamented fish-trap.
Lejeunecysta decorinassa Srivastava, 1995, p.312,314, pl.30, figs.6–7. Holotype: Srivastava, 1995, pl.30, fig.7. Age:
Maastrichtian.
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Original description Srivastava, 1995:
Description-Cysts pentagonal with a single apical and two antapical horns; apical horn short but distinct with rounded apex; antapical horns two, unequal with acuminate apices; wall layers not distinct, probably autophragm only, parasutural features absent, archeopyle only: archeopyle intercalary, type 1 (2a), hexagonal. sometimes operculum attached, antapical margin near paracingulum margin: paracingulum indicated in the widest part as broad folds; parasulcus indicated by a longitudinal concavity in the hypocyst.
Size measurements-Total length x breadth range 109-117 x 99-104 !-Lm
Holotype--PI. 30, fig. 7: photomicrograph reference no. 85030/4: objective X 40; microscope locationhorizontal 34.0/vertical 112.0; size-total length x breadth 117 x 99 !-Lm; sample no. CRC 32140-1/Slide 2: locality DW12. the Navarro Group, the Corsicana Clay. Navarro County, Texas, Maastrichtian.
Paratype--PI. 30, fig. 6; photomicrograph reference no. 85029/14; objective X 40: microscope location horizontal 52.0/vertical 101.0: size-total length x breadth 109 x 104 !-Lm; sample no. CRC 32140-1/S1ide 4: locality DW12, the Navarro Group. the Corsicana Clay. Navarro County, Texas, Maastrichtian.
Remarks--Lejeunecysta decorinassa is distinct from L. fallax and L. communis in being larger having distinct in apical and antapical horns, and an autophragm with granulose wrinkles; and from Phelodinium magnificum in having autophragm only.
Name derivation-I. decoris = ornamented: nassa = wicker basket with narrow neck. or fish-trap; decor + i + nassa = ornamented fish-trap.