Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)

Figure 83 — Neritopsis (Neritopsis) papodensis SZABÓ, 1982 (A-D), refiguration of the holotype, Neritopsis (Neritopsis) fabianii TONI, 1912 (E-H) and Neridomus aff. tetbys (G. G. GEMMEIJLARO, 1878) (I), images reproduced from SZABÓ (1982). — A-D: holotype of IV. (N-)papodensis, apertural (A), dorsal (B) and apical (C, D) views, A-C = xl, D — x4; E-H: N. (N.) fabianii, apertural (F, H) and apical (E, G) views, E-F = xl, G-H = x2.5; I: Neridomus aff. tetbys, the only neritdd, published from the Hierlatz limestone; x2. Neritopsis (Neritopsis) papodensis SZABÓ, 1982 (Figure 83: A-D) 1982: Neritopsis (Neritopsis)papodensis sp. n. — SZABÓ, p. 18, pl. 1, figs 6—9. Material —- Four fragmentary specimens (holotype HGM J 10130). Measurements H HL HP holotype 11.5 10.5 9 Shape — Nennform shell with moderately protruded spire and strongly convex surface of whorls, having also narrow ramp. Ramp appearing on last protoconch whorl that ends with marked growth line and sudden onset of spiral ornament. Peristome somewhat ovate with angulation at suture and without outer thickening. Inner lip extending to base as narrow, thin parietal callus. Sculpture — Following sharp prosocline-prosoycrt growth-line, marking end of protoconch, spiral threads appear first that strengthen as cords, than secondary' lines appear in almost all interspaces. These crossed by prosocline growth-lines and few suture to suture (to inner lip, on base) D 11 8.5 AA 118° AL 118 c collabral costae. Costate shell portion begins quarter whorl after protoconch and endures on following whorl. Remarks — These forms are similar to those of Neritopsis fabianii TONI, which have transverse ridges or riblets, but differ in having stronger and longer costae restricted to a longer and definite shell portion. More­over, N. papodensis has a higher spire and a deeper suture than N. fabianii. N. (N.) elegantissima HÖRNES and the related species with heavy- costae or varices differ in having them over the full length of teleoconch. Distribution — Lókút, Fenyveskút (Bakony Mts), Upper Pliensbachian. Family Neritidae RAFINESQUE, 1815 Genus Neridomus MORRIS & LYCETT, 1851 Type species: Nerita haemisphaerica MORRIS & LYCETT, 1851 (= Neridomus anglica COX & ARKELL, 1950) Neridomus aff. tetbys (G. G. GEMMELLARO, 1878) (Figure 83: I) aff. 1878: Neritina Tetbys GEMM. — GEMMELLARO, G. G., p. 326, pi. 27, figs 40, 42. 1982: Neritoma (Neridomus) aff. tetbys (GEMMELLARO. G. G, 1878) — SZABÓ, p. 20, pi. 2, fig. 1. Material — A single specimen (HGM). Measurements H HL HP D W AA AL Figure 83:1 (HGM) *6 *5.5 *5 *7 *4.5 Shape — Small, globose shell, with last whorl nearly completely enveloping earlier parts. Peristome ovate, angular at suture, inner lip thick and largely callous. Sculpture — Shell smooth with some obscure spiral lines on last whorl, and very fine growth-lines without sinus. Remarks — The shape of the specimen is highly similar to that of Neritina tethys G. G. GEMMELLARO, 1878, but owing to the bad preservation and to its possible juvenile state, the identification is doubtful. Distribution —Lókút, Kericser (Bakony Mts), Davoei Zone (Lower Pliensbachian).

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