Ranella olearia ( Linnaeus, 1758 )

Kovács, Zoltán & Vicián, Zoltán, 2017, Middle Miocene Tonnoidea and Ficoidea (Caenogastropoda) assemblages from Letkés (Hungary), Fragmenta Palaeontologica Hungarica 34, pp. 75-104 : 84-85

Ranella olearia ( Linnaeus, 1758)

( Figs 25–26 )

1758 Murex olearium – LINNAEUS, p. 748.

1969 a Bursa (Ranella) gigantea Lam. – CSEPREGHY-MEZNERICS, p. 80, pl. 3, figs 13, 16–17.

2009 Ranella olearia (Linnaeus) – LANDAU et al., p. 70, pl. 5, figs 3–4 (cum syn.).

Material – Four specimens (SL 62–74); in private collections.

Description – Fusiform shell, elevated spire, six convex teleoconch whorls, concave sutural ramp, nodulose shoulder, last whorl constricted at the base. Ovate aperture, denticulate outer lip thickened by labral varix, long, recurved siphonal canal. Spiral sculpture of two primary and numerous secondary cords both on the ramp and below the shoulder on the spire whorls, strong cords and four rows of nodes on the last whorl, axial sculpture of rounded ribs (9 on the last whorl), fine growth lines, two varices per whorl.

Remarks – The wide palaeogeographical and stratigraphical ranges, as well as the morphological variability of the species was discussed in detail by LANDAU et al. (2004). R. olearia is a rare element of the studied assemblage.

Distribution – Burdigalian-Tortonian: PMS ( Italy), Langhian: NEA ( France), Badenian:CP ( Austria, Czech Republic, Hungary, Poland, Romania).For Pliocene-Recent range see LANDAU et al. (2004).

Figures

Figs 25–26. Ranella olearia (Linnaeus), Coll. TH, SL 74, MD 50.5 (0.9×), apertural and abapertural views. – Figs 27–28. Charonia lampas (Linnaeus). – 27. HNHM INV 2017.673., SL 36, MD 20 (1×), apertural view.– 28. Coll. TH, SL 76, MD 40 (1×), abapertural view.– Figs 29–30. Monoplex corrugatus (Lamarck), Coll. TH, SL 74, MD 41.5 (0.9×), apertural and abapertural views