Falsataphrus? valfinense (Loriol, 1887 in Loriol and Bourgeat 1886 –1888)

Gründel, Joachim & Nützel, Alexander, 2024, Late Jurassic (Upper Kimmeridgian) gastropods from Saal near Kelheim (Germany, Bavaria), Zitteliana 98, pp. 19-72 : 19-72

Falsataphrus? valfinense (Loriol, 1887 in Loriol and Bourgeat 1886 –1888)

Plate 2: figs 12, 13

1886–1888 Teinostoma valfinense Loriol – Loriol in Loriol and Bourgeat: 189, pl. 21, figs 6–7.

? 1997 Buckmannia sp. – Hägele: 52, fig. p. 52 lower left.

Material.

2 specimens, SNSB – BSPG 2016 XXI 1696 –1697.

Description.

Shell lens-shaped with very low spire; larger specimen 12 mm wide; last whorl embracing most of previous whorls; sutures indistinct; apex rounded; shell smooth; periphery evenly rounded; base flat; base and aperture incompletely preserved; no umbilicus and ornament visible; it is unclear whether the broad callus covering the umbilicus that would be typical of the genus Falsataphrus is present or not.

Remarks.

Falsataphrus corallensis ( Buvignier, 1852) sensu Gründel et al. (2020 a) has at least sometimes a higher spire ( Gründel et al. 2020 a: pl 12: figs 13, 14); other specimens are hardly distinguishable from the present specimens ( Gründel et al. 2020 a: pl 12: figs 10, 11). Falsataphrus corallensis sensu Loriol in Loriol and Koby (1890) cannot be distinguished from F.? valfinense according to its description.

Figures

Plate 2. (1, 2) Leptomaria sp., SNSB – BSPG 2016 XXI 1628, lateral and basal views, width 30 mm. (3–5) Leptomaria phacoides Zittel, 1873, SNSB – BSPG 2016 XXI 1629, lateral, apical and basal views, width 41 mm. (6) Leptomaria phacoides Zittel, 1873?, SNSB – BSPG 2016 XXI 1631, lateral view, height 22 mm. (7) Rimulopsis danuviensis sp. nov., holotype, SNSB – BSPG 2016 XXI 1653, collection Neubauer, lateral view, height 9 mm. (8) Rimulopsis danuviensis sp. nov., paratype, SNSB – BSPG 2016 XXI 1654, collection Neubauer, anterior view, height 7 mm. (9–11) Asperilla longispina (Rolle, 1861), SNSB – BSPG 2016 XXI 1661, lateral, apical and basal views, width including spines 24 mm. (12, 13) Falsataphrus? valfinense Loriol, in Loriol and Bourgeat (1886–1888), SNSB – BSPG 2016 XXI 1696, apical and lateral views, width 12 mm. (14, 15) Caryomphalus globatus (Buvignier, 1843), SNSB – BSPG 2016 XXI 1713, basal and lateral views, width 15 mm.