Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)
bilicus present, but probably hidden by inner lip on adults. Outer up fragments suggest considerable thickening at least in adult stage. Steinkern with impression of outer lip suggest peristome without slit. On same specimen (Figure 47: C) trace of selenizone still observable about 40° before peristome. Sculpture — Predominantly spiral ornament, consisting of widely spaced spiral threads and cords, strongest of them running at peripheral region. Traces of subregularly repeating collabral threads (weak riblets) also found on available specimens mainly on ramp, but their continuation on outer face also observable. Intersection points of ornamental elements bear fine granules, similar to those of Wortheniopsis (Sisenna) species. Collabral ornament seem to lack sharply prosocyrt parts along both sides of selenizone; they seem to be cut by selenizone, formed later (= Trochotoma-hke morphology). Remarks — Morphology' of the collabral ornament is different from that of Wortheniopsis (Sisenna) species though the shape is rather similar. The differences required a systematical place near Urkutitoma bartkoi that has different shape, and selenizone morphology. SACCHI Ad A LI .1 (1964) published a revised name [Trochotoma subturrita (D'ORBIGNY)] instead of Pleurotomaria pinguis D'ORBIGNY, given by PARONA (1894), to some specimens from Saltrio (Southern Alps, Italy) Sinemurian; these specimens may be conspecific with the Bakony Mts ones. SACCHI VlALLl's (1964) genus name supports the systematic arrangement in trochotomid relation, suggested also here. Distribution — Bakony Mts (Lower Pliensbachian): Lókút, Kericser: Ibex to Davoei Zones; Lókúti-domb(?), Davoei Zone; Hárskút, Közöskúti-árokf?): Ibex Zone. Figure 47 — Urkutitoma? sp., another species that does not seem to have slit on the outer lip, but have selenizone; it means that a trema must be the exhalant opening. — A-B: a juvenile specimen, showing traces of the trochotomid type collabral ornament, A = xl, B = x3; D-E: adult last whorl fragment in dorsal (D) and basal (E) views, x2; C: steinkern of an adult specimen, XL Superfamily Fissurelloidea FLEMING, 1822 Family ? Fissurellidae FLEMING, 1822 Genus Austriacopsis HABER, 1932 Type species: Rimula austriaca HÖRNES, 1853 Austriacopsis (Austriacopsis) austriaca (HÖRNES, 1853) (Figure 48: A-D) 1853: Rimula austriaca HÖRNES — HÖRNES, p. 753. 1861: Rimula austriaca HÖRNES — STOLICZKA, p. 193, pl. 5, fig. 3. 1934: Austriacopsis (Austriacopsis) austriaca (HÖRNES, 1853) — HABER, p. 254. 1980: Austriacopsis (Austriacopsis) austriaca (HÖRNES, 1853) —SZABÓ, p. 65, pl. 4, figs 6-9 Lectotype — GBa 2008/69/47/1 (selected here). Material — Eleven specimens in the GBa, and twenty in the HGM collections. MeasurementsH HA L LP W lectotype 6.5 6.5 *19 *19 16.5 Shape — Patelliform shell with bilateral symmetry. position subcentral. In lateral view, anterior part convex, Shell starts in spiral coiling thus apex slightly backward posterior part feebly convex or straight. Slight concavity 7 curving. Peristome entire, ovate, pointed posteriorly. Apex frequendy occurs just behind apex and near adult peristome.
