Aptyxiella tricincta ( Münster, 1844 ) sensu Quenstedt (1881, 1884

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

Aptyxiella tricincta ( Münster, 1844) sensu Quenstedt (1881 –1884) comb. nov.

Plate 11: figs 15, 16

2022 – Bactroptyxis? tricincta (Münster) sensu Quenstedt (1881–1884 ) – Gründel, Keupp, Lang and Nützel: 199, pl. 13, figs 11–16 (here more chresonymy and synonymy).

Material.

5 specimens, SNSB-BSPG 2016 XXI 1880 –1884 and 4 questionable specimens, SNSB-BSPG 2016 XXI 1885 –1888, from Saal.

Remarks.

The longitudinal section of a specimen shows that there are no plates or folds inside the aperture. The species is therefore assigned to the genus Aptyxiella .

Figures

Plate 11. (1, 2) Diarthema aspera sp. nov., holotype, SNSB-BSPG 2016 XXI 1863, (1) lateral view, height 37 mm, (2) wing, height 16 mm. (3) Diarthema aspera sp. nov., paratype, SNSB-BSPG 2016 XXI 1864, lateral view, height 28 mm. (4) Diarthema aspera sp. nov., paratype, SNSB-BSPG 2016 XXI 1865, aperture, height 35 mm. (5, 6) Aporrhaidae gen. inc. schlosseri (Loriol in Loriol and Bourgeat 1886–1888), SNSB-BSPG 2016 XXI 1871, (5) lateral view, height 38 mm, (6) columellar section, height 32 mm. (7–9) Gen. indet. schlosseri (Loriol in Loriol and Bourgeat 1886–1888), SNSB-BSPG 2016 XXI 1872, (7) lateral view, height 35 mm, (8) last two whorls, height 19 mm, (9) basal view, width 16 mm (without wing), 23 mm (including wing). (10, 11) Gen. indet. monilitesta Zittel, 1873, SNSB-BSPG 2016 XXI 1874, lateral views, height 19 mm. (12–14) Gen. indet. sp. indet, SNSB-BSPG 2016 XXI 1875, apertural, apical and abapertural views, width of specimen 26 mm. (15, 16) Aptyxiella tricincta (Münster in Goldfuss, 1844), SNSB-BSPG 2016 XXI 1880, lateral view and columellar section, height 32 mm. (17, 18) Aptyxiella planata (Quenstedt, 1858), SNSB-BSPG 2016 XXI 1889, (17) longitudinal section, height 30 mm, (18) lateral view, height 48 mm.