Mazescala sp. 1
|
publication ID |
https://doi.org/10.11646/zootaxa.5630.1.1 |
|
publication LSID |
lsid:zoobank.org:pub:89462472-D932-4255-880F-C6EF15220A31 |
|
persistent identifier |
https://treatment.plazi.org/id/03D787A4-FFB9-FFB8-FF3F-FB13FA249101 |
|
treatment provided by |
Plazi |
|
scientific name |
Mazescala sp. 1 |
| status |
|
Figs 4H View FIGURE 4 , 33D View FIGURE 33 , 34C View FIGURE 34
Illustrated material. NHMW 2024/0278/0010, SL: 4.2 mm, MD: 1.8 mm, Bad Vöslau ( Austria), Figs 4H View FIGURE 4 , 33D View FIGURE 33 , 34C View FIGURE 34 1 –C View FIGURE 1 2 View FIGURE 2 .
Description. Shell very small, moderately slender (apical angle ~22°), weakly coronate. Protoconch turreted, of four smooth, weakly convex whorls. Teleoconch of seven strongly convex whorls, with weakly concave subsutural ramp, angled shoulder, with periphery placed just above mid-whorl. Suture deeply impressed, weakly undulating. Sculpture of moderately widely spaced, moderately raised, only weakly prosocline, thin but robust lamellae, partly obliquely aligned axially (11: 13: 13). Crest of lamellae only weakly rolled over. Low, broad, trigonal spines at lamellae along shoulder. Interspaces between lamellae smooth, glossy. Last whorl attaining about 38% of total height, lamellae persisting on base, becoming strongly rolled over, no peribasal cord. Aperture not preserved.
Discussion. This species differs from Mazescala kostejana ( Boettger, 1902) in its fewer lamellae, presence of faint spiral sculpture in the lamellar interspaces, and its protoconch consist of four instead of three whorls. Mazescala alata sp. nov. is broader and differs in its greater number of lamellae. The Pliocene to Pleistocene Mediterranean Mazescala salicensis ( Seguenza 1876) is larger (SL: 14.0 mm) and has more numerous and more prosocline lamellae (see Landau et al. 2006: pl. 11, fig. 4).
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).
| NHMW |
Naturhistorisches Museum, Wien |
| 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.