Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)
gO SZABÓ,J.: Revision of Hierlatz Limestone gastropods Eucyclus (Lokuticyclus) lokutensis SZABÓ, 1995 (Figure 75: FI-J) 1995:Eucyclus (Lokuticyclus) lokutensis sp. n. — SZABÓ, p. 71, pi. 7, figs 10—11 (loriginallv erroneously indicated as figs 12—13). Material — A single specimen, the holotype (HGM J 11463). Measurements H HL HP holotype *21.5 *15 Shape — Low littoriniform, cyrtoconoidal species of extremely thin-walled shell, having convex whorls and strongly convex base. Rim of umbilicus subangulate. Peristome not preserved, whorl cross-section suggests Eucyclus type apertural region. Cross section of "umbilical" lip shows moderate thickening on last peristome. Sculpture — Number of spiral cords four on penultimate whorl, one of them just above suture. Cords on base (12-14) of similar strength than on whorls but more closely spaced. Interspaces between them crossed by delicate growth lines. No evidence for presence of collabral threads, and tubercles on spiral cords has been found. Remarks — The spiral angle \ r alue given is D W AA AL *21 55° 55° measured on last whorl, the apical angle must be much higher because of the cyrtoconoidal shape. The strongly different shape, the difference in the number of exposed spiral cords on the penultimate whorl and in the width of the umbilicus of the two species give an easy way of distinction of Eucyclus (Eokutigclus) lokutensis from Eugclus (Eokutigclus) aff. campiliensis (DE STEFAN!, 1887). (See distinction from E. (E.) urkutensis and E. (L.) kericserensis in their descriptions, above.) Distribution — Lókút, Kericser (Bakony Mts), beds with Upper Sinemurian to Lower Pliensbachian (Obtusum to Ibex Zone) mixed fauna. (The specimen does not show any trace of reworking therefore it is probably Lower Pliensbachian; the Sinemurian fossils are redeposited.) Eucyclus (Lokuticyclus) kericserensis SZABÓ, 1995 (Figure 75: E-G) 1982: Eugclomphalus sp. — SZABÓ, p. 27, pi. 3, fig. 10. cf. 1995: Eugclomphalus sp. — CONTI & MoxARl, p. 206, pi. 2, figs 12-14. 1995: Eugclus (Eokutigclus) kericserensis sp. n. — SZABÓ, p. 70, pi. 7, 12—13 ([originally erroneously indicated as figs 10-11). Material — A single specimen, the holotype (HGM J 11462). Measurements H HL HP holotype *21 *13 *9 Shape — High turbiniform-littoriniform shell, with convex surface of whorls and narrowly phaneromphalous base. Suture moderately impressed. Umbilical lip straight and parallel to axis, cross-section of whorls subcircular on part corresponding to outer lip. S ulpture — Whorls and base sculptured by spiral cords, on latter region in double density 7 . Fine threads and very fine, prosocline growth-lines give collabral ornament. Because of poor preservation, it cannot be seen, whether tubercles exist on crossing points of cords and threads or not. Remarks — The shape of this species nearest to that of Eugclus (Eokutigclus) urkutensis; see their distincton in the description of the latter species above. D W AA AL *14 *9 55° 55° Eugclus (Eokutigclus) lokutensis has more globular shape, lacks the collabral threads in the interspaces of the (fewer) spiral cords. On the basis of the wider spiral angle and the narrower umbilicus, this species is distinctly separable from ]iugclus (Eokutigclus) aff. campiliensis DE STEFAN!. Definitely, this species also belongs to the relatives of "Turbo" elegáns MÜNSTER, 1844 and "Turbo" ferryi DUMORT1ER, 1864 but there are disagreements in the number and nature of the cords, and the measurements. Distribution — Lókút, Kericser (Bakony Mts), beds with mixed Obtusum to Ibex Zone fauna, and DaA'oei Zone (Upper Sinemurian to Lower Pliensbachian). Eucyclus (Lokuticyclus) aff. campiliensis (DE STEFANI, 1887) (Figure 75: K-O) aff. 1887: Pleurotomaria campiliensis sp. n. — DESTEFANI, p. 45, pl. 1, figs 12—13. 1982: Eugclomphalus ciff. campiliensis (DE STEFANI, 1887) — SZABÓ, p. 26, pi. 3, figs 8-9 cf. 1991 : Eugclomphalus aff. campiliensis (DE STEFANI, 1887) — CONTI & MONARI, p. 273, pi. 8, figs 15-16. 1995: Eucyclus (Eokutigclus) aff. campiliensis (DE STEFANI, 1887) — Sz.AB(), p. 71. Material — Two damaged shelly and six internal mould specimens are available (figured one: HGM J. 08.15.1). Measurements H HL HP D W AA AL HGMJ.08.15.1 **21 **15 **9 **18.5 **7.5 **45° **45° fragmenta Palaeontologica Hungarica 26, 2008
