Parviscala abdita, 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-FF8C-FF8E-FF3F-F894FA249245 |
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treatment provided by |
Plazi |
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scientific name |
Parviscala abdita |
| status |
sp. nov. |
Parviscala abdita sp. nov.
Figs 4L View FIGURE 4 , 39C–E View FIGURE 39 , 40C View FIGURE 40
Type material. Holotype, NHMW 2024 View Materials /0278/0011, SL: 5.7 mm, MD: 2.2 mm, Bad Vöslau ( Austria), Figs 4L View FIGURE 4 , 39E View FIGURE 39 1 –E View FIGURE 1 2 View FIGURE 2 . Paratypes, NHMW 2024 View Materials /0278/0012, SL: 6.3 mm , MD: 2.5 mm, Bad Vöslau ( Austria), Figs 39C View FIGURE 39 1 –C View FIGURE 1 2 View FIGURE 2 , 40C View FIGURE 40 . NHMW 2024 View Materials /0278/0013, SL: 5.2 mm , MD: 2.2 mm, Bad Vöslau ( Austria), Figs 39D View FIGURE 39 1 –D View FIGURE 1 2 View FIGURE 2 .
Type locality. Bad Vöslau ( Austria), Vienna Basin .
Type stratum. Baden Formation.
Age. Middle Miocene, middle Badenian (Langhian).
Etymology. Abditus (Latin for hidden) referring to the fact that the specimens were ‘hidden’ in a lot of Parviscala lacinia sp. nov.
Diagnosis. Small, moderately slender turreted shell with turreted multispiral protoconch, convex whorls with rounded shoulder placed just above mid-whorl and moderately close-set, moderately raised, robust, weakly prosocline lamellae, obliquely aligned axially, occasionally with low indistinct trigonal spine along shoulder, weak spiral threads in axial interspaces.
Description. Shell small, moderately slender turreted (apical angle ~23–27°), faintly coronate. Protoconch turreted, of four smooth, weakly convex whorls, blunt elevated nucleus. Teleoconch of at least seven strongly convex whorls, with weakly concave subsutural ramp, rounded shoulder, periphery placed just above mid-whorl. Suture deeply impressed, linear. Sculpture of moderately close-set, moderately raised, robust, weakly prosocline lamellae, obliquely aligned axially (12: 12: 12), fused across suture. Crest of lamellae moderately rolled over. Some lamellae with weak, low, trigonal spines at shoulder. Interspaces between lamellae glossy with weak spiral threads. Last whorl convex, attaining about 40% of total height, lamellae persisting over base, strongly rolled over, no peribasal cord, base sub-angled, slightly convex. Aperture ovate, columella weakly concave. Outer lip not preserved. No umbilicus.
Discussion. This species is reminiscent of Parviscala badensis sp. nov., which differs in its angled shoulder, more prominent spines, less fused lamellae, even weaker spiral sculpture and a pointed protoconch. Parviscala paratethyca sp. nov. has less convex whorls and is distinctly coronate. The extant Mediterranean Parviscala vaillanti ( Jousseaume, 1912) is similar but differs in its strongly prosocline strongly raised lamellae and deeply impressed suture (see Bonfitto et al. 2021: fig. 1).
Paleoenvironment. Occurrences in the Baden Formation of the Vienna Basin suggest middle to outer neritic settings in up to 250 m water depth ( Kranner et al. 2021).
Distribution in Central Paratethys. Badenian (Middle Miocene): Vienna Basin: Baden ( Austria) (hoc opus).
| MD |
Museum Donaueschingen |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.