Auingeria austriaca ( Hoernes & Auinger, 1880 ) Harzhauser & Landau, 2021

Harzhauser, Mathias & Landau, Bernard M., 2021, The Columbellidae (Gastropoda, Buccinoidea) in the Miocene Paratethys Sea — striking diversity of a negelected group, Zootaxa 5025 (1), pp. 1-75 : 49-50

Auingeria austriaca ( Hoernes & Auinger, 1880) nov. comb.

Figs 15H 1 –H 2 , I 1 –I 2 , J 1 –J 2

Anachis Austriaca nov. form.—Hoernes 1880: 127 [nomen nudum].

* Columbella (Anachis) Austriaca nov. form.— Hoernes & Auinger 1880: 101, pl. 11, fig. 28.

Columbella (Macrurella) adiecta Bell. — Sacco 1890b:47, pl. 2, fig. 57.

A.[nachis]. (A [nachis].) austriaca (R. Hörn. et Au.) — Sieber 1958a: 147.

Pyrene (Anachis) austriaca Hoernes et Auinger — Csepreghy-Meznerics 1969: 83, pl. 4, figs 15, 16, 23.

Columbella (Macrurella) adiecta Bellardi, 1890 — Ferrero Mortara et al. 1981: 183, pl. 56, figs 14a–b.

Columbella austriaca Hoernes & Auinger, 1880 — Landau et al. 2019: 169.

Type material. Lectotype (designated herein): NHMW1863 /0015/0628a, SL: 13.3 mm, MD: 5.2 mm, Niederleis ( Austria), illustrated in Hoernes & Auinger (1880, pl. 11, figs 28a–c), Figs 15I 1 –I 2 . Paralectotypes: NHMW1863 / 0015/0628b, SL: 14.4 mm, MD: 6.1 mm, Niederleis ( Austria) , Figs 15H 1 –H 2 . NHMW 2020 /0166/0001, SL: 18.1 mm, MD: 6.6 mm, Brno-Kníničky (Kinitz) (the Czech Republic) , Figs 15J 1 –J 2 . NHMW1860 /0001/0126, 1 spec., Hlohovec (= Bischofswart) (the Czech Republic) ; NHMW1863 /0015/0628b, 27 spec., Niederleis ( Austria) , NHMW 2020 /0166/0001, 1 spec. Brno-Kníničky (Kinitz) (the Czech Republic) .

Description. Shell medium sized, moderately broad, with gradate spire and subcylindrical whorls with periphery at abapical suture. Protoconch unknown. Teleoconch of eight whorls. Spire whorls smooth with adsutural spiral cord at adapical suture delimited by one or two spiral grooves. Last whorl subcylindrical, slightly pinched below adsutural spiral cord, strongly constricted base. Aperture moderately narrow. Outer lip weakly thickened with about eight prominent lirae within, extending deep within aperture. Anal canal weakly incised, V-shaped. Siphonal canal long, narrow, slightly deflected, shallowly notched at tip. Columellar callus moderately thickened forming sharply delimited callus rim, with five indistinct denticles. Parietal callus weak.

Shell measurements and ratios. SL: 13.3–18.1 mm, MD: 5.2–6.6 mm, AA: 35–37°, SL/MD: 2.4–2.8, AL/AW: 3.6–4.0, LWH/AH: 1.3.

Discussion. Auingeria austriaca ( Hoernes & Auinger, 1880) is separated from its Paratethyan congeners in having weaker sculpture; much weaker cords than Auingeria grussbachensis (Czepreghy-Meznerics, 1969) , and no axials as in the strongly-sculptured Auingeria bellardii (Hoernes, 1852) .

Columbella adiecta Sacco, 1890 , from the middle Miocene of the Colli Torinesi ( Italy), has slightly stronger spiral sculpture than the Paratethyan specimens of Auingeria austriaca , but otherwise has similar shell features, and is considered herein to be a subjective junior synonym.

Palaeoenvironment. At the Niederleis section, sediment and fossils from coastal and lagoonal environments not exceeding 30 m water depth were transported by tempestites into offshore settings ( Mandic et al. 2002).

Distribution in Central Paratethys. Badenian (middle Miocene): North Alpine-Carpathian Foreland Basin: Brno-Kníničky (Kinitz) (the Czech Republic); Vienna Basin: Niederleis ( Austria); Bükk Mountains: Borsodbóta ( Hungary) ( Csepreghy-Meznerics 1969).

Proto-Mediterranean Sea. Langhian (middle Miocene): Colli Torinesi: Rio della Batteria ( Italy) ( Sacco, 1890b).

Figures

FIGURE 1. A. Map of central and south–eastern Europe, representing the area that was partly covered by the Central Paratethys Sea. The white insert corresponds to the area that is restored in the palaeogeographic map below. B. Paleogeography of the Middle Miocene Paratethys Sea showing the most important sedimentary basins (NAFB: North Alpine Foreland Basin, E–Sopr B: Eisenstadt–Sopron Basin).

FIGURE 2. Measurements for shell morphology and whorl profiles. SL: shell length, MD: maximum diameter, AA: apical angle, LWH: last whorl height, AH: aperture height. AL: aperture length. AW: aperture width.

FIGURE 15. A1–A2. Auingeria bellardii (Hoernes, 1852), NHMW1851/0013/0007, holotype, Baden (Austria). B1–B2. Auingeria bellardii (Hoernes, 1852), NHMW1853/0003/0095, Forchtenau (Austria). C. Auingeria bellardii (Hoernes, 1852), NHMW1949/0005/0008, Forchtenau (Austria). D. Auingeria bellardii (Hoernes, 1852), NHMW1866/0001/0673, Baden (Austria).E1–E2. Auingeria grussbachensis (Csepreghy-Meznerics, 1969), NHMW1999z0076/0005, Hrušovany nad Jevišovkou (the Czech Republic). F1–F2. Auingeria grussbachensis (Csepreghy-Meznerics, 1969), NHMW1999z0076/0005, Hrušovany nad Jevišovkou (the Czech Republic). G1–G2. Auingeria grussbachensis (Csepreghy-Meznerics, 1969), NHMW1999z0076/0004, Sedlec (Porzteich) (the Czech Republic). H1–H2. Auingeria austriaca (Hoernes & Auinger, 1880), NHMW1863/0015/0628b, paralectotype, Niederleis (Austria). I1–I2. Auingeria austriaca (Hoernes &Auinger, 1880), NHMW1863/0015/0628a, lectotype, Niederleis (Austria). J1–J2. Auingeria austriaca (Hoernes & Auinger, 1880), NHMW2020/0166/0001, paralectotype, Brno- Kníničky (Kinitz).