Subuliscala pseudobanoni, Harzhauser & Landau, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5630.1.1 |
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publication LSID |
lsid:zoobank.org:pub:89462472-D932-4255-880F-C6EF15220A31 |
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persistent identifier |
https://treatment.plazi.org/id/03D787A4-FF9D-FF9E-FF3F-FCFBFEB89715 |
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treatment provided by |
Plazi |
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scientific name |
Subuliscala pseudobanoni |
| status |
sp. nov. |
Subuliscala pseudobanoni sp. nov.
Figs 40I View FIGURE 40 , 46B–C View FIGURE 46
Type material. Holotype, NHMW 2024 View Materials /0279/0006, SL: 12.5 mm, MD: 4.9 mm, Grund ( Austria), Figs 40I View FIGURE 40 , 46B View FIGURE 46 1 – B View FIGURE 1 2 View FIGURE 2 . Paratype, NHMW 2024 View Materials /0279/0007, SL: 10.5 mm , MD: 5.2 mm, Grund ( Austria), Figs 46C View FIGURE 46 1 –C View FIGURE 1 2 View FIGURE 2 .
Type locality. Grund ( Austria), North Alpine-Carpathian Foreland Basin .
Type stratum. Grund Formation.
Age. Middle Miocene, early Badenian (Langhian).
Etymology. Referring to the similarity with Subuliscala banoni ( Tournouër, 1874)
Diagnosis. Medium-sized, moderately slender, turreted shell of evenly convex whorls, deeply impressed suture, numerous, very delicate, weakly raised, slightly sigmoidal lamellae with numerous delicate spiral threads in interspaces, basal angulation subobsolete.
Description. Shell medium-sized, moderately slender, turreted (apical angle ~20°). Protoconch and early teleoconch whorls unknown. Teleoconch of strongly and evenly convex whorls with indistinct subsutural ramp, periphery placed mid-whorl. Suture deeply impressed, linear. Sculpture of numerous, delicate, weakly raised, weakly sigmoidal lamellae, not aligned axially (?: ~30: ~35), slightly bent in apertural direction at adapical suture, separated by wider interspaces. Tips of varices slightly more prominent close to adapical suture, faintly alate, touching preceding whorl. Lamellae not strictly evenly spaced, occasionally reduced or slightly more prominent by amalgamation without forming distinct varices. Interspaces with numerous delicate spiral threads. Last whorl convex, attaining about 40% of total height, basal angulation subobsolete, without peribasal cord, base weakly convex with distinct lamellae and numerous delicate spiral threads. Short, broad fasciole with prominent growth lines. Aperture elongate ovate, columella weakly concave. Outer lip and basal lip thin. Columellar callus forming moderately broad, thin rim attached to fasciole; no parietal callus. No umbilicus. Peristome simple.
Discussion. Subuliscala pseudobanoni sp. nov. is reminiscent of Subuliscala banoni ( Tournouër, 1874) , from the Burdigalian of France, but differs in its more convex whorls, wider apical angle, and weaker lamellae (see Tournouër, 1874: pl. 9, fig. 4, Cossmann 1912: pl. 2, figs 12–13; Cossmann & Peyrot 1922: pl. 4, figs 22–23, 35, 41–42). Subuliscala lagusensis (de Boury in Cossmann, 1912), from the Burdigalian of France, differs in its angled whorls and regularly spaced and uniform lamellae (see Cossmann 1912: pl. 2, figs 14–15; Cossmann & Peyrot 1922: pl. 4, figs 49–50). Subuliscala pseudobanoni co-occurs with Subuliscala breitenbergeri sp. nov. but S. breitenbergeri has a narrower spire, a larger last whorl, and slightly stronger lamellae, although they are still relatively weak. Adiscoacrilla? orientalis ( Friedberg, 1914) differs in its much more prominent varices and thickened peristome (see Friedberg 1928: pl. 38, fig. 24).
Paleoenvironment. At the locality Grund channels formed in middle to outer neritic environments and were filled, with allochthonous assemblages uniting coastal-mudflat faunas with inner neritic ones (Zuschin et al. 2005; Roetzel 2009). The preservation suggests that the shells might have belonged to the middle and outer neritic assemblages.
Distribution in Central Paratethys. Badenian (Middle Miocene): North Alpine-Carpathian Foredeep: Grund ( Austria).
| MD |
Museum Donaueschingen |
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