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

Early Jurassic fauna and facies of the Schafberg area Pliensbachian brachiopods Brachiopods were collected at five localities from the red, micritic, and sometimes coarsely crinoidal Pliensbachian limestones. This formation is exposed in a narrow belt along the northern foot of Schafberg and consists of Upper Triassic "Plattenkalk", penetrated by vertical neptunian dykes filled with red, crinoidal-brachiopodal limestones of Pliensbachian age. This unit can be interpreted as a remnant of an Early Jurassic submarine horst. In the Pliensbachian, due to repeated distensive tectonic movements, gigantic fissures opened along the rim of the submarine horst. These trapped most of the biodetritus and lime mud what was previously swept and carried down to the southern basin. Our main collecting points were at Suissensee, Mittersee, along the road from Schwarzensee to Feichtingeck and at Meislalm. The brachiopod fauna collected from the Pliensbachian red limestones is very diverse: the 383 specimens belong to at least 27 species. In most localities the fauna is dominated by the large-sized species Securithyris adnethensis (SUESS), it may suggest that the brachiopod associations rather closely reflect the composition of the original communities. The state of preservation is medium (or poor at Meislalm), but the inarticulated (single) brachiopod valves are subordinate; this also speaks against a longer transport of the shells. All but three of the 19 identified species were known previously from the Schafberg area (BÖSE 1898). The composition of the fauna shows great resemblance to the Late Pliensbachian brachiopod fauna of the Bakony Mts: except Cirpa briseis (GEMMELLARO), Prionorhynchia aff. hagaviensis (BÖSE), Cuneirhynchia aff. dalmasi (DUMORTIER) and Liospiriferina semicircularis (BÖSE), the other 15 species are known also from the Bakony. In conclusion, the Schafberg fauna belonged definitely to the Mediterranean Province but shows transitional features between the Appennino-Transdanubian and the Carpatho-Sicilian Subprovinces of VÖRÖS (1987). Pliensbachian localities and their brachiopod faunas (with specimen numbers) 8. Suissensee-W (along path, leaclmg to Himmelspforte) Rhynchonellida indet. 1 Koninckodonta sp. 1 IJospiriferina semicircularis (BÖSE) 1 IJospiriferina sp. indet. 2 Viallithyris go-^anensis (PARON A) 6 Zeilleria ? sp. 1 9. Suissensee-Kar (crest between Mittersee and Suissensee) Apringia cf. altesiniiata (BÖSE) 3 IJospiriferina sp. indet. 2 Securithyris adnethensis (SUESS) 2 Linguithyris aspasia (ZlTTEL) 1 Viallithyrisgo^anensis (PARONA) 1 Lobothyris ? sp. 2 Brachiopoda indet. 2 10. Mittersee (Lobitzer's point ÖK 65) (N of Schafberg) Apringia cf. paolii (CANAVARI) 6 Apringia cf. diptycha (BÖSF.) 1 Apringia cf. altesinuata (BÖSE) 1 Apringia sp. indet. 6 Cuneirhynchia aff. dalmasi (DUMORTIER) 3 Rhynchonellida indet. 17 Liospiriferina sicula (GEMMELLARO) 1 Liospiriferina globosa (BÖSE) 2 Liospiriferina sp. indet. 25 Koninckodonta sp. 4 Orthotoma ? sp. 1 Lobothyris ? sp. 1 Linguithyris aspasia (ZlTTEL) 3 Securithyris adnethensis (SUESS) 68 Viallithyrisgos^anensis (PARONA) 1 Zeilleria cf. bicolor (BÖSE) 2 Bakonyithyris ovimontana (BÖSE) 10 Terebratulida indet. 15 Brachiopoda indet. 21 11. Aschergraben (above Schwarzensee, along the forestry road leading to Feichtingeck) Apringia ? sp. 1 Cirpa ? sp. 1 Cirpa cf. briseis (GEMMELLARO) 1 Koninckodonta sp. 3 Liospiriferina cf. alpina (OPPEL) 1 Liospiriferina sp. 8 RJjapidothyris ? sp. 4 Unguithyris aspasia (ZlTTEL) 1 Bakonyithyris cf. ovimontana (BÖSE) 8 Bakonyithyris sp. 3 Brachiopoda indet. 3 12a. Meislalm (above Schwarzensee) Apringia paolii (G\NAVARl) 3 Apringia diptycha (BÖSE) 2 Apringia altesinuata (BÖSE) 8 Apringia sp. 5 Cirpa cf. briseis (GEMMELLARO) 1 Prionorhynchia ? hagaviensis (BÖSE) 1 Koninckodonta cf. waehneri (BlTTNER) 3 Liospiriferina semicircularis (BöSF.) 1 IJospiriferina sp. 9 Securithyris adnethensis (SUESS) 46 RJjapidothyris ? cf. ovimontana (BÖSE) 1 Zeilleria mutabilis (OPPEL) 8 Bakonyithyris cf. ovimon tana (BÖSE) 13 Brachiopoda indet. 8 12b. Meislalm (above Schwarzensee) (isolated block of ammonitic Hierlatz Limestone) Prionorhynchia ? aff. hagaviensis (BÖSE) 1 Apringia cf. paolii (CANAVARI) 2 Apringia sp. indet. 2 Koninckodonta sp. 1 Liospiriferina sp. 5 Unguithyris aspasia (ZlTTEL) 3 Bakonyithyris sp. 1 Brachiopoda indet. 5