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

Zeilleria baldaccii GEMMELLARO, 1874 (Plate VII: 24—26) — Twenty three specimens were collected at six localities of the Schafberg area. Both valves of the studied brachiopods are very flat and they have raindrop-shaped forms. Its beak is much higher than in the case of Z. alpina. Z. aff. baldacci was mentioned from the Late Sinemurian of the Bakony Mts by VÖRÖS (1997). Zeilleria batilla (GEYER, 1889) (Plate VII: 27-29) — Ten specimens were found at three collecting points along the Schafberg slopes. It shows pentagonal outline, but the lateral margins are parallel to each other from the middle of length to the anterior margin; in this way this species can be distinguished from Z. mutabilis. Some specimens are flatter than the figured one. Z. batilla was described by GEYER (1889) from the same facies of the Hierlatzberg. Detailed systematic description is given by DULAI (in press). Zeilleria bicolor (BÖSE, 1898) (Plate VII: 30-31) — Ten brachiopods were found at five collecting points along the Schafberg slope and at Schwarzensee. This species was described from the Schafberg area by BÖSE (1898). The beak ridges of the pedicle valve are high, straight, while the beak is slighdy incurved and hood-like. It is similar to Z. mutabilis, but its oudine is oval and the valves are more convex. Another similar form is Z. livingstonei, but the outline of this latter species is rounded triangular. Zeilleria choffati (HAAS, 1885) — Nineteen specimens were collected at five localities of the Schafberg area. Sometimes it is similar to the subtriangular variety of Z. mutabilis but it has more convex valves and the maximum width is at the middle of the length. The anterior margin is sometimes concave (BÖHM et al. 1999). Detailed systematic description was given by DULAI (1992 and in press). Zeilleria mutabilis (OPPEL, 1861) — One of the most common Sinemurian brachiopod species of the Schafberg area: one hundred and two specimens were found at eight collecting points. According to SlBLIK (1993) this is the most common and most variable Zeilleria species in the Alpine area. Similar forms are Z. alpina and Z. choffati (see DULAI 1992). ANTOSTCHENKO (1973) classified this species erroneously into Spinulotbyris. Forms of pentagonal oudine occurred at the tunnel of Schafberg, while oval and wider specimens were found at the upper terminus of the railway station. Detailed systematic description was given by DULAI (1992, 1993 and in press). Zeilleria oenana (BÖSE, 1898) — Five specimens were collected at three localities along the Schafberg slopes. This species was described from the Schafberg area by BÖSE (1898). Both valves are flat and the beak of the pedicle valve is hood-like. It is similar to Z. mutabilis, but it shows more rounded outline, higher beak and a very small sulcus. Zeilleria perforata (PlETTE, 1856) (Plate VII: 32-34) — Four specimens were found along the Schafberg slopes and at Mondsee locality. The beak is missing and the anterior margin is concave in specimens, found at the "water pump" locality. The maximum thickness of the figured specimen is near to the beak of the brachial valve and it shows strongly convex valves. Zeilleria venusta (UHLIG, 1879) (Plate VII: 35-37) — Nine specimens occurred along the Schafberg slopes and at Mondsee. It is relatively large form, both valves are strongly convex. The valves meet at obtuse angle at the lateral and anterior commissures, therefore it has boxlike shape. One of the Schafberg specimens shows atypical morphology': width is larger than length (though it is a bit compressed). Three fragmentary brachiopods were found at Mondsee; the figured one is typical. Securina partschi (OPPEL, 1861) (Plate VII: 41-42) — Fourteen brachiopods were collected on the Schafberg slopes and at Mondsee. Large-sized and fragmentary specimens occurred at the Schafberg slopes with large planareas. One specimen shows strongly curved and pointed pedicular beak. Width and length are nearly equal in the specimens, foond at the railway terminus; but it is not so extreme form than was figured by FUCINI (1895). All the Mondsee specimens are surprisingly small-sized. Securina aff. securiformis (GEMMELLARO, 1874) (Plate VII: 43—45) — Only two fragmentary specimens occurred on the Schafberg slopes and at Mondsee. It can be distinguished from S. partschi by the rounded outline and the convex anterior margin. The Schafberg specimen is fragmentary but it shows convex ventral outline and not so deep planareas. The two valves do not meet at acute angle at the anterior commissure than in Dl STEFANO's (1891) material; it is more similar to BÖSE & SCHLOSSER's (1900) figure 17. The Mondsee specimen has rounded triangular outline, with straight lateral margins and strongly convex anterior margin. Both valves are convex and they meet at obtuse angle at the commissures, therefore they have boxlike shape. The planareas are not deep, they have plain surfaces (unfortunately the preservation is not very good at the planareas). The pedicular beak is broken, its convexity is unknown. S. securiformis was never mentioned from the Northern Calcareous Alps. Bakonyithyris ewaldi (OPPEL, 1861) (Plate VII: 3840) — Five specimens were found at four collecting points of the Schafberg area. The outline of the Schafberg specimens are not elongated than OPPEL's (1861) figure Id, they are more similar to figure la or PARONA's (1880) material, but its sulcus is not so deep. Our figured specimen is small-sized, relatively flat and the sulcus is not well-developed (it may be a juvenile form). An extremely large form was also found along the Schafberg slope. Both valves are strongly convex at the Schwarzensee specimen, its outline is similar to GEYFLR's (1889) figure 5. on plate 4. It is small sized and the maximum width is shifted towards the anterior margin.