Papuliscala praeelongata, 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-FFE9-FFEB-FF3F-F9C7FE37976D |
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treatment provided by |
Plazi |
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scientific name |
Papuliscala praeelongata |
| status |
sp. nov. |
Papuliscala praeelongata sp. nov.
Figs 2B View FIGURE 2 , 3F View FIGURE 3 1 –F View FIGURE 1 2 View FIGURE 2
Type material. Holotype, NHMW 1871 View Materials /0010/0129, SL: 3.6 mm, MD: 1.2 mm, Porzteich at Břeclav ( Czech Republic), Figs 2B View FIGURE 2 , 3F View FIGURE 3 1 –F View FIGURE 1 2 View FIGURE 2 .
Type locality. Porzteich at Břeclav ( Czech Republic), Vienna Basin .
Type stratum. Baden Formation.
Age. Middle Miocene, middle Badenian (Langhian).
Etymology. Referring to Papuliscala elongata ( Watson, 1881) , which might be a closely related species.
Diagnosis. Very small, slender turreted shell with markedly angled teleoconch whorls, moderately steep subsutural ramp with prominent axial ribs and cancellate sculpture below subsutural ramp.
Description. Shell very small, slender turreted (apical angle ~18°). Protoconch and early teleoconch whorls unknown. Teleoconch of about eight whorls. Whorl profile with moderately steep, slightly concave subsutural ramp, marked shoulder angulation, subcylindrical periphery, constricted below. Suture deeply impressed, linear. Sculpture of prominent, narrow, orthocline axial ribs, not aligned axially, separated by wider interspaces (12: 14: 12). Axial ribs overrun by three prominent spiral cords, forming horizontally elongate cancellate sculpture below shoulder, with small nodes developed at sculptural intersections. Nodes along shoulder angulation weakly pointed. Subsutural ramp devoid of spiral sculpture. Finer spiral cord at abapical suture partly covered by subsequent whorl. Last whorl attaining about 35% of total height, moderately angled basal angulation delimited by narrow but prominent peribasal cord, base flattened bearing three further cords. Aperture ovate. Outer lip not preserved. Columellar and parietal callus indistinct, adherent. No umbilicus.
Discussion. This species is characterized by its sharp shoulder angulation with small, pointed nodes, prominent axial ribs on the subsutural ramp and cancellate sculpture below. Papuliscala elongata ( Watson, 1881) , from the western and eastern Atlantic, is exceptionally similar concerning the marked shoulder angulation and cancellate sculpture. They are distinguished by the slenderer shape of Papuliscala elongata (see Brunetti & Soccio 2006: fig. 2b; Pimenta et al. 2018: fig. 15).The base of P. elongata is smooth, or almost so, whereas the base in P. praeelongata sp. nov. has three cords.
Paleoenvironment. Unknown. Extant Papuliscala species are found in deep water environments ( Bouchet & Warén, 1986).
Distribution in Central Paratethys. Badenian (Middle Miocene): Vienna Basin: Porzteich at Břeclav ( Czech Republic) (hoc opus).
| MD |
Museum Donaueschingen |
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