Granulatocincta angelae ( Hoernes & Auinger, 1891 ) Harzhauser & Landau & Janssen, 2022

Harzhauser, Mathias, Landau, Bernard & Janssen, Ronald, 2022, The Clavatulidae (Gastropoda, Conoidea) of the Miocene Paratethys Sea with considerations on fossil and extant Clavatulidae genera, Zootaxa 5123 (1), pp. 1-172 : 46-48

Granulatocincta angelae ( Hoernes & Auinger, 1891) nov. comb.

Figs 16E 1 –E 2 , F 1 –F 2 , G 1 –G 3, 3U , 5 , 6

Clavatula Angelae —Hoernes 1891: 131 [nomen nudum].

* Pleurotoma (Clavatula) Angelae nov. form.— Hoernes & Auinger 1891: 353, pl. 46, figs 17–19.

Clavatula angelae Hö. Au. — Boettger 1902: 48.

Clavatula granulatocincta angelae Hörnes & Auinger — Csepreghy-Meznerics 1953: 10, pl. 1, figs 27–28.

Clavatula (Clavatula) granulatocincta angelae R. Hoernes et Auinger — Švagrovský 1958: 13, pl. 3, figs 4–6.

C [lavatula]. (C [lavatula]) granulato-cincta angelae (R. Hörn. et Au.) — Sieber 1958a: 157.

Clavatula granulatocincta angelae Hörnes & Auinger — Strausz 1966: 408, pl. 16, fig. 12.

Clavatula (Clavatula) granulatocincta angelae (Hoernes, Auinger) — Nikolov 1994: 58, pl. 7, figs 1–3.

Clavatula veronicae ( Hoernes & Auinger, 1891) — Bałuk 2003: 39, pl. 4, figs 9–10 [non ‘Clavatula’ veronicae ( Hoernes & Auinger, 1891) ].

Type material. Lectotype: NHMW 1949/0005/0100a, SL: 38.1 mm, MD: 18.3 mm, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1891, pl. 46, figs 18a–c), designated by Nikolov (1994: 58), figs 16E 1 –E 3. Paralectotypes: NHMW 1949/0005/0100b, SL: 51.5 mm, MD: 22.3 mm, Lăpugiu de Sus ( Romania), illustrated in Hoernes & Auinger (1891, pl. 46, fig. 17), figs 16F 1 –F 3; NHMW 1949/0005/0099, SL: 32.7 mm, MD: 14.4 mm, Möllersdorf ( Austria), illustrated in Hoernes & Auinger (1891, pl. 46, fig. 19), figs 16G 1 –G 3; 3U.

Additional studied material. NHMW 1870 /0033/0113, 12 spec., Lăpugiu de Sus ( Romania) ; NHMW 2016 /0177/0967, 7 spec., Lăpugiu de Sus ( Romania) ; NHMW 2016 /0177/0968, 9 spec., Lăpugiu de Sus ( Romania) .

Revised description. Shell moderately large, solid, broad, with strongly coronate conical spire; apical angle ranging around 37–43°. Protoconch not preserved. Teleoconch of up to nine whorls. Early teleoconch whorls flat-sided, with tripartite sculpture; finely beaded subsutural cord, beaded mid-whorl cord, and axially elongate, opisthocline beads on suprasutural cord abapically cut by an increasing number of intercalating spiral grooves. On the sixth spire whorl sculpture changes abruptly; the cord becomes swollen forming collar, the beads replaced by small, pointed tubercles placed at mid-collar. Whorl profile below concave, mid-whorl and suprasutural cords cut by increasing number of spiral grooves, leaving row of poorly defined tubercles above suture. Suture narrowly impressed, superficial, weakly undulating. Last whorl 55% of total height. Subsutural collar broad, coronate, with 14–16 midsized pointed tubercles placed mid-collar, subsutural ramp broad, concave, shoulder obtusely angled by tubercular shoulder cord, moderately constricted at base. Siphonal fasciole short, rounded, twisted. Sculpture of four primary spiral cords with whorl profile concave between major cords. Adapical shoulder cord also delimiting periphery, bearing numerous small rounded tubercles. Mid-whorl cord with weaker tubercles; peribasal and perifasciolar cords weaker and weakly tubercular. Whole surface covered in finely beaded secondary spirals. Aperture wide, ovate; outer lip not thickened by varix, smooth within. Anal sinus wide, moderately deep, asymmetrically U-shaped, with apex just below collar. Siphonal canal moderately short, shallowly notched at tip. Columella weakly excavated in upper third, weakly twisted below, smooth. Columellar and parietal callus thickened, sharply delimited, forming relatively broad callus rim.

Discussion. This species was treated as subspecies of Granulatocincta granulatocincta (Münster in Goldfuss, 1841) by all authors since Boettger (1902), but differs from that species in its longer siphonal canal, narrower aperture, the abrupt change of sculpture on the spire whorls and the concave whorl profile. In addition, it lacks a central cord of more prominent granules on later teleoconch whorls. Bałuk (2003) confused this species with ‘ Clavatula’ veronicae ( Hoernes & Auinger, 1891) , which differs in its more slender shape, the much longer siphonal canal and the reduced nodes on the spiral sculpture.

Paleoenvironment. Probably middle to outer neritic environments based on the occurrences at Korytnica ( Poland) ( Bałuk & Radwański 1977).

Distribution in Central Paratethys. Badenian (middle Miocene): Korytnica Basin: Korytnica ( Poland) ( Bałuk 2003); Vienna Basin: Möllersdorf ( Austria) ( Hoernes & Auinger 1891), Mikulov (the Czech Republic) ( Švagrovský 1958); Pannonian Basin: Szob ( Hungary) ( Csepreghy-Meznerics 1953); Făget Basin: Coşteiu de Sus, Lăpugiu de Sus ( Romania) ( Boettger 1906); Dacian Basin: Opanec, Bivolare ( Bulgaria) ( Nikolov 1994).

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. Descriptive terms used in descriptions and measurements to shell morphology, whorl profiles and anal sinus. SL: shell length, MD: maximum diameter, AA: apical angle, LWH: last whorl height, AH: aperture height.AL: aperture length.AW: aperture width.

FIGURE 3. Early teleoconch whorls of extant and fossil Clavatulidae species. A. Clavatula regia (Röding, 1798), NHMW 1683 6/28, West Africa. B. Clavatula rubrifasciata (Reeve, 1845), NHMW 10203, Gorée (Senegal). C. ‘Clavatula’ diadema (Kiener, 1839), NHMW 1884/0010/0023, Gorée (Senegal). D. ‘Clavatula’ mystica (Reeve, 1843), MNHN-IM-2013-59897, Est de l'ile de Gorée (Senegal). E. ‘Clavatula’ bimarginata (Lamarck, 1822), MNHN-IM-2013-43369, Dakar (Senegal). F. ‘Clavatula’ pyramidata (Kiener, 1839), MNHN-IM-2009-24982, Baie de Pointe-Noire (Republique du Congo). G. Clavatula sorini nov. sp., paratype, NHMW 1874/0025/0046, Lăpugiu de Sus (Romania). H. ‘Clavatula’ romana (Defrance, 1826), NHMW 1999/0098/0004, Modra-Kráľová (Slovakia). I. ‘Clavatula’ interrupta (Brocchi, 1814), NHMW 1861/0033/0420, Buituri (Romania). J. ‘Clavatula’ hirmetzli Kovács & Vicián, 2021, NHMW 1868/0001/0069, Baden-Sooss (Austria). K. ‘Clavatula’ irisae nov. sp., NHMW 2021/0126/0001, holotype, Gainfarn (Austria). L. ‘Clavatula’ sophiae (Hoernes & Auinger, 1891), lectotype, NHMW 2021/0127/0001, Enzesfeld (Austria). M. ‘Clavatula’ veronicae (Hoernes &Auinger, 1891), NHMW 1855/0043/0044b, Lăpugiu de Sus (Romania). N. ‘Clavatula’ santhai Kovács & Vicián, 2021, holotype, HNHM, PAL 2021.20.1, Letkés (Hungary).O. ‘Clavatula’ camillae (Hoernes &Auinger, 1891), lectotype, NHMW 1949/0005/0042, Lăpugiu de Sus (Romania). P. Megaclavatula amaliae (Hoernes & Auinger, 1891), lectotype, NHMW 1949/0005/0049, Lăpugiu de Sus (Romania). Q. Megaclavatula grunerti nov. sp., paratype, NHMW 2021/0127/0003, Enzesfeld (Austria). R. Megaclavatula laevigata (Eichwald, 1830), NHMW 1853/0038/0035a, Korytnica (Poland). S. Megaclavatula pilleri nov. sp., holotype, NHMW 1949/0005/0051a, Baden-Sooss (Austria). T. Megaclavatula polonica (Pusch, 1837), NHMW 1862/0001/0324, Bad Vöslau (Austria).U. Granulatocincta angelae (Hoernes &Auinger, 1891), paralectotype, NHMW 1949/0005/0099, Möllersdorf (Austria). V. Granulatocincta granulatocincta (Münster in Goldfuss, 1841), NHMW 1846/0028/0009, Enzesfeld (Austria). W. Granulatocincta nataliae (Hoernes & Auinger, 1891), NHMW 1855/0035/0021, holotype, Belgrade/Rakovica (Serbia). X. Granulatocincta schreibersi (Hörnes, 1854), paralectotype, NHMW1997z0178/1133, Bad Vöslau (Austria).Y. Granulatocincta callim nov. sp., paratype, NHMW 2021/0128/0001, Bad Sauerbrunn (Austria). Z. Granulatocincta contorta (Švagrovský, 1958), holotype, SNMB Z 3076, Kuzmice (Slovakia), Aa. Granulatocincta theoderichi nov. sp., paratype, NHMW 2016/0026/0320b, Ritzing (Austria). Ab. Olegia doderleini (Hörnes, 1854), paralectotype, NHMW 1858/0015/0147, Wiesen (Austria). Ac. Olegia mandici nov. sp., paratype, NHMW 1872/0031/0008a, Bekića vrelo, Čremušnica at Donji Kirin (Croatia). Ae. Olegia dorotheae (Hoernes & Auinger, 1891), paralectotype, NHMW 1949/0005/0040, Kleinebersdorf (Austria). Scale bar is 5 mm for all specimens except for Granulatocincta contorta, Olegia doderleini and O. mandici.

FIGURE 5. Anal sinus morphology of Paratethyan Clavatulidae.

FIGURE 6. Apertures of Paratethyan Clavatulidae (C. = Clavatula, ‘C.’ = ‘Clavatula’, G. = Granulatocincta, M. = Megaclavaltula, O. = Olegia).

FIGURE 16 A1–A3. ‘Clavatula’ veronicae (Hoernes & Auinger, 1891), NHMW 1855/0043/0044d, Lăpugiu de Sus (Romania). B1–B3. ‘Clavatula’ veronicae (Hoernes & Auinger, 1891), paralectotype, NHMW 1855/0043/0044c, Lăpugiu de Sus (Romania). C1–C2. ‘Clavatula’ veronicae (Hoernes &Auinger, 1891), paralectotype, NHMW 1855/0043/0044b, Lăpugiu de Sus (Romania). D. ‘Clavatula’ veronicae (Hoernes & Auinger, 1891), lectotype, NHMW 1855/0043/0044a, Lăpugiu de Sus (Romania). E1–E2. Granulatocincta angelae (Hoernes & Auinger, 1891), lectotype, NHMW 1949/0005/0100a, Lăpugiu de Sus (Romania). F1–F2. Granulatocincta angelae (Hoernes & Auinger, 1891), paralectotype, NHMW ex1949/0005/0100b, Lăpugiu de Sus (Romania). G1–G3. Granulatocincta angelae (Hoernes & Auinger, 1891), paralectotype, NHMW 1949/0005/0099, Möllersdorf (Austria).