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Valensiella vermiculata
From Fensome et al., 2019:
Valensiella vermiculata Gocht, 1970b, p.150, pl.34, figs.10–11; text-fig.19d.
Holotype: Gocht, 1970b, pl.34, fig.10.
Locus typicus: Aldorf 12 Borehole, Kreis Grafschaft Diepholz, NW Germany
Stratum typicum: Early Bathonian
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Translation Gocht, 1970: LPP
Original description: Gocht, 1970, p. 150
Diagnosis: Body ovoidal, with delicate wall. Transverse furrow only slightly pronounced, longitudinal furrow mostly more clearly pronounced. ridges narrow, mainly isolated, vermiform, clasp- or loop-shaped.
Description (annotated): The few specimens are excellently preserved and, because of the characteristical ridges between the membranes, are easy to describe. In a specimen groups of networks develop locally in corners or at the ends of the ridges. In the girdle-region the ridges partially give way to low, fine lines; in the holotype the longitudinal furrow is strongly concave almost up to the pole. The plate margins are hardly differentiated dorsally, but are ventrally, near the deeply indented longitudinal furrow, so much the more clear. At the poles the periphragm can be wider separated from the endophragm because of the higher ridges.
Dimensions: Holotype 67:63 µm, other specimens: length (without cap) 60-74 µm, width 53-61 µm. 7 specimens.
Affinities:
Gocht, 1970, p. 150
Extreme foms of V. ovulum with reduced network are similar to V. vermiculata, but are do neither have as delicate a wall nor the bizar loop-shape of the ridges. Nor do they become as large as V. vermiculata. Yet the narrow relationship between the two species is underlined by such transitional forms.
Valensiella vermiculata Gocht, 1970b, p.150, pl.34, figs.10–11; text-fig.19d.
Holotype: Gocht, 1970b, pl.34, fig.10.
Locus typicus: Aldorf 12 Borehole, Kreis Grafschaft Diepholz, NW Germany
Stratum typicum: Early Bathonian
---------------------------------------------------------------------------------------------------
Translation Gocht, 1970: LPP
Original description: Gocht, 1970, p. 150
Diagnosis: Body ovoidal, with delicate wall. Transverse furrow only slightly pronounced, longitudinal furrow mostly more clearly pronounced. ridges narrow, mainly isolated, vermiform, clasp- or loop-shaped.
Description (annotated): The few specimens are excellently preserved and, because of the characteristical ridges between the membranes, are easy to describe. In a specimen groups of networks develop locally in corners or at the ends of the ridges. In the girdle-region the ridges partially give way to low, fine lines; in the holotype the longitudinal furrow is strongly concave almost up to the pole. The plate margins are hardly differentiated dorsally, but are ventrally, near the deeply indented longitudinal furrow, so much the more clear. At the poles the periphragm can be wider separated from the endophragm because of the higher ridges.
Dimensions: Holotype 67:63 µm, other specimens: length (without cap) 60-74 µm, width 53-61 µm. 7 specimens.
Affinities:
Gocht, 1970, p. 150
Extreme foms of V. ovulum with reduced network are similar to V. vermiculata, but are do neither have as delicate a wall nor the bizar loop-shape of the ridges. Nor do they become as large as V. vermiculata. Yet the narrow relationship between the two species is underlined by such transitional forms.