Monteiroconus mercati ( Brocchi, 1814 )

Kovács, Zoltán & Balázs, Péter, 2015, Conidae (Neogastropoda) assemblage from the Middle Miocene of the Făget Basin (Romania) in the collection of the Hungarian Natural History Museum, Budapest, Fragmenta Palaeontologica Hungarica 32, pp. 11-48 : 22

Monteiroconus mercati ( Brocchi, 1814)

(Figs 35–36, 40–41)

1814 Conus Mercati – BROCCHI, p. 287, pl. 2, fig. 6.

2013 Monteiroconus mercati (Brocchi) – LANDAU et al., p. 244, pl. 39, figs 2–4, pl. 41, fig. 12, pl. 42, fig. 6, pl. 81, figs 7–8 (cum syn.).

Material – 8 specimens – Coşteiu: M 60.9865.A-B., 68.23.; Lăpugiu: M 60.8293.C., 60.8360.J-K., 60.10149., 60.10198.

Description – SL: 50–60. Spire of low to moderate height, outline slightly gradate, straight to slightly concave. Spiral whorls smooth, sutural ramps flat to gently concave. Shoulder angulate. Body whorl conical, slightly elongate, outline convex, smooth with fine ridges at the base. Subsutural flexure asymmetrically curved, of moderate depth.

Remarks – The species shows moderate variability of growth of the spire. The specimen on Figs 40–41 bears gradate spire with subangular and smooth spiral whorls, it agrees with M. mercati var. turricula (Brocchi) .

Distribution – Middle Miocene: Atlantic ( France), Paratethys ( Austria, Czech Republic, Hungary, Romania), Mediterranean ( Turkey).

Figures

Figs 40–41. Monteiroconus mercati (Brocchi), M 60.9865.A., Coşteiu, SL: 34, apertural and abapertural views,(1×). – Figs 42–43. Monteiroconus tietzei (Hoernes et Auinger), M 60.8107., Nemeşeşti, SL: 36, abapertural and apertural views, (1×). – Figs 44–45. Plagioconus elongatus (Borson), M 60.7860., Coşteiu, SL: 86.5, abapertural and apertural views, (1×). – Figs 46–47. Plagioconus extensus (Hörnes), M 60.8135., Nemeşeşti, SL: 64, abapertural and apertural views, (1×). – Figs 48–49. Pseudonoduloconus cf. subbigranosus (Sacco), M 60.9873.B., Coşteiu, SL: 8, abapertural and aper- tural views, (3×)