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Spiniferites cryptovesiculatus
Spiniferites cryptovesiculatus (Hansen, 1977) Stover and Williams, 1987
NOW Hafniasphaera. Originally (and now) Hafniasphaera, subsequently Spiniferites.
Holotype: Hansen, 1977, fig.18c, e-f
Locus typicus: Tuba 13 well, Copenhagen, Denmark
Stratum typicum: Danian
Original diagnosis: Hansen, 1977, p.14: Hafniasphaera cryptovesiculata
Hafniasphaera with subspherical, thickwalled central body provided with numerous evenly distributed vesicles with a diameter of 0.5 µm or less. Boundaries between paraplates clearly marked by folds of periphragm. Processes strong, solid, Y-shaped in cross-section, trifurcate, bifid. If present the vesicles in the processes generally are smaller than those of the central body.
Description: Hansen, 1977, p.14: Hafniasphaera cryptovesiculata
Central body with a clear paratabulation of plates 1"-4", 1"-6", 1c-6c, 1"""-6""", ps, 1p, 1"""". Paraplate 1""" is very little, 4" is situated above parasulcus, between 1" and 5". Paracingulum is rather narrow. Vesicles are most abundant in the inner part of the cyst wall (endophragm). The vesiculation of the outer layer and the processes (periphragm) varies greatly from absent to almost as dense as in the endophragm. Processes often provided with a basal cavity with the shape of a tetrahedron. Sutural processes have not been observed.
Dimensions: Central body: Short diameter 76-88 µm, average 84.6 µm. Long diameter 80-100 µm, average 88.3 µm. Overall diameter: Short diameter 108-142 µm, average 124.0 µm. Long diameter 120-146 µm, average 130.7 µm.
NOW Hafniasphaera. Originally (and now) Hafniasphaera, subsequently Spiniferites.
Holotype: Hansen, 1977, fig.18c, e-f
Locus typicus: Tuba 13 well, Copenhagen, Denmark
Stratum typicum: Danian
Original diagnosis: Hansen, 1977, p.14: Hafniasphaera cryptovesiculata
Hafniasphaera with subspherical, thickwalled central body provided with numerous evenly distributed vesicles with a diameter of 0.5 µm or less. Boundaries between paraplates clearly marked by folds of periphragm. Processes strong, solid, Y-shaped in cross-section, trifurcate, bifid. If present the vesicles in the processes generally are smaller than those of the central body.
Description: Hansen, 1977, p.14: Hafniasphaera cryptovesiculata
Central body with a clear paratabulation of plates 1"-4", 1"-6", 1c-6c, 1"""-6""", ps, 1p, 1"""". Paraplate 1""" is very little, 4" is situated above parasulcus, between 1" and 5". Paracingulum is rather narrow. Vesicles are most abundant in the inner part of the cyst wall (endophragm). The vesiculation of the outer layer and the processes (periphragm) varies greatly from absent to almost as dense as in the endophragm. Processes often provided with a basal cavity with the shape of a tetrahedron. Sutural processes have not been observed.
Dimensions: Central body: Short diameter 76-88 µm, average 84.6 µm. Long diameter 80-100 µm, average 88.3 µm. Overall diameter: Short diameter 108-142 µm, average 124.0 µm. Long diameter 120-146 µm, average 130.7 µm.