Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 21. 2003. (Budapest, 2003)

Cuneirhynchia dalmasi (DUMORTIER, 1869) — Only two specimens were collected at Mondsee and Schwarzensee localities. This species is similar to C. retusifrons but it has flatter pedicle valve and its outline is more triangular. Triangular (e.g. Dl STEFANO 1891) and pentagonal (e.g. SlBLÍK 1964) forms were also classified into this species in the literature. It is a small-sized, flat form with very few ribs. The ribs can be observed only at the anterior margin. Cuneirhynchia aff. dalmasi (DUMORTIER, 1869) — Only one specimen was found along the slopes of Schafberg. It is a very small-sized form and both valves are flat. Its ribs are even weaker than at the typical C. dalmasi. The only specimen is fragmentary but its outline seems to be less triangular. The beak ridges of the pedicle valve are strong but the planareas are very

7 small. The anterior commissure is rectimarginate. Cuneirhynchia fraasi (OPPEL, 1861) — Only one specimen occurred along the slopes of Schafberg. SlBLÍK (1993) did not give generic identification to this species in the absence of the knowledge of the inner morphological characters but later classified this species into Prionorhynchia and regarded synonymous with P. polyptycha (in BÖHM et al. 1999 and SlBLÍK 2002). At the same time SlBLÍK mentioned the significant differences in the inner morphological characters between the Adnet specimens and the P. polyptycha from the DSkuti-domb of the Bakony Mts published by DULAI (1992). BÖHM et al.'s (1999) and SlBLÍK's (2002) opinion is not followed in this paper. It can be distinguished from C cartieri by the larger size and the more pentagonal outline. Cuneirhynchia retusifrons (OPPEL, 1861) (Plate VI: 38—40) — Three specimens were collected at three localities. The outline and the ribs of this form are rather variable. The outline is concave at the anterior margin. Two stronger ribs run to the corners of the anterior margin. The studied specimens of the Schafberg slopes are larger than the Hungarian material at the Lókúti-domb locality and its brachial valve is more convex. "PàynchonelW cartierijormis described by VÍGH (1943) is probably synonymous with C. retusifrons. Detailed systematic description of this species was given by DULAI (1992 and in press). Cuneirhynchia palmata (OPPEL, 1861) (Plate VI: 35-37) — Only one well-preserved specimen was found on the slopes of Schafberg. It has triangular outline and few strong ribs, which become stronger towards the anterior margin. Both valves are rather flat. The beak ridges are strong and the planareas are deeper than at the other Cuneirhynchia species of the studied material. The anterior commissure is slightly uniplicate; the plica is wide and angular. Our specimen is very similar to GEYER's (1889) material from the Hierlatzberg. This species was classified into Prionorhynchia by SlBLÍK (2002) but VÖRÖS's (1997) opinion is followed in this paper. Gibhirhynchia curviceps (QUENSTEDT, 1858) — Only one specimen occurred at Schwarzensee locality

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. Biconvex form, the brachial valve is more convex. The anterior commissure is uniplicate and slightly asymmetrical. The plica is wide but not high. The ribs become gradually stronger towards the anterior margin. The ribs of the studied specimen do not show bifurcation, as it was observed at the Sinemurian material of Hungary (DULAI in press). Liospiriferina aequiglobata (UHLIG, 1900) — Only one small juvenile specimen was found at Mondsee. The convexity

7 of the pedicle and brachial valve is similar, and the width bigger than the length. This species is similar to Liospiriferina alpina but the beaks of the pedicle and brachial valves are nearly at the same heights here, while there are significant differences in the position of the beaks at L. alpina. Another difference is the presence of a small sulcus. Another similar species is L moriconii where the sulcus is not significant. BÖHM et al. (1999) mentioned Liospiriferina aff. obtusa from Adnet, which is very similar to this form. From the Northern Calcareous Alps, this is the first record of L aequiglobata. Detailed systematic description of the species is given by DULAI (in press). Explanation to Plate VII I- 3 Liospiriferina aradasi (GEMMELLARO) — xl, Schafberg slope. 4—6 Liospiriferina brevirostris (OPPEL) — xl, Mondsee. 7-10 Liospiriferina cordiformis (BÖSE) — xl, Mondsee. II- 13 Liospiriferina darwini (GEMMELLARO) — xl

, Schafberg slope. 14-17 Liospiriferina obtusa (OPPEL) — xl, Schafberg slope, 1550m. 18-20 Lobothyris punctata (SOWERBY) — xl, Schafberg slope, 1550m. 21-23 Viallithyris gozzanensis (PARONA) — xl, Schafberg slope, 1575m. 24-26 Zeilleria baldaccii GEMMELLARO — xl, Mondsee. 27-29 Zeilleria batilla (GEYER) — Xl, above the Schafbergalpe. 30-31 Zeilleria bicolor (BÖSE) — xl, above the Schafbergalpe. 32-34 Zeilleria perforata (PlETTE) — xl, Schafberg slope, 1550m. 35-37 Zeilleria venusta (UHLIG) — Xl, Mondsee. 38-40 Bakonyithyris ewaldi (OPPEL) — xl, Schafberg slope, 1550m. 41—42 Securina partschi (OPPEL) — Xl, Schafberg, upper railway terminus. 43-45 Securina aff. securiformis (GEMMELLARO) — xl, Mondsee.