Leptomaria phacoides Zittel, 1873

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

Leptomaria phacoides Zittel, 1873 ?

Plate 2: fig. 6

Material.

A single shell fragment, SNSB – BSPG 2016 XXI 1631 .

Remarks.

The fragment of ca. four whorls shows a well preserved ornament. It possibly belongs to Leptomaria phacoides but it has a higher and more slender spire than the specimen described above as L. phacoides . Both have the selenizone below mid-whorl on the last whorl and in a suprasutural position in spire whorls. The whorl face including selenizone is covered with numerous spiral cords which are broader than the furrows separating them. The growth lines are prosocline and prosocyrt between the adapical suture and selenizone and prosocyrt between selenizone and abapical suture. The base is not preserved.

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.