Vörös A. szerk.: Fragmenta Mineralogica Et Palaentologica 14. 1989. (Budapest, 1989)
brown, red, or due to its glauconite contents, green. It often contains silica. From the basal horizon of the formation a rich fauna of brachiopods was collected. Apart from brachiopods and crinoids, the formation is poor in macrofauna. Table 1 The Aptian brachiopods of the Northern Bakony Mts. Eperkéshegy Bocskorhegy Szilasárok Közöskutiárok Monticlarella ? lineolata Monticlarella aff. decipiens Monticlarella sp. Lacunosella moutoniana Orbirhynchia parkinsoni Orbirhynchia sp. Belbekella cf. gibbsiana Cruralina aff. cruralinica Cruralina sp. Loriolithyris cf. valdensis Praelongithyris aff. praelongiforma Moutonithyris dutempleana Moutonithyris aff. dutempleana Belothyris convexa Belothyris cf. pseudojurensis Belothyris sp. "Terebratella" astieriana Number of species 28 4 52 1 36 7 10 29 17 1 6 43 78 52 9 4 11 58 4 12 7 6 16 5 1 2 6 19 5 7 4 In this paper 17 species of Brachiopoda (Table 1) are described from four localities in the Northern Bakony Mts. fsouth-west to north-east) : Közöskuti-árok (Hárskút), Szilas-árok (Borzavár), Bocskor-hegy (Zirc) and Eperkés-hegy (Olaszfalu) (Fig. 1). Közöskuti- árok. The greyish-brown crinoidal limestone rests on Barremian marl. It contains green glauconitic nodules, a lot of sponge spicules and 3 to 5 mm long plant fossils. In some places it is siliceous. The brachiopod valves are usually disarticulated and not uniformly orientated. The specimens can be divided into two groups with different intervals of dimensions: that of between 10 to 15 and 25 to 30 millimetres. Among the four localities, it proved to be the poorest (5 species), lacking terebratellidines. S zilas- árok. The Lower Cretaceous is represented here by Berriasian limestone, topped by a hardground, and the overlying Aptian crinoidal limestone. The latter is pink or grey, with medium grain size. The brachiopods (8 species) can be found on the beddingplanes (Plate I: 1). The proportion of the double-valved specimens in the whole fauna is about 30 %. Bocskor-hegy. The crinoidal limestone, about 4 metres in thickness, rests on Valanginian-Hauterivian limestone. It is greyish-brown, coarse and well-bedded. The majority of brachiopods was collected from one layer, about 0.1 m in thickness. 37% of the specimens were double-valved (it is the highest proportion in the four localities). There are several species in common with the Szilas-árok, but the specimens found here are always larger. Eperkés-hegy. The crinoidal limestone rests on weathered formations of different age. Its thickness is only about 1. 5 metre. The red, coarse ferruginous limestone contains a lot of extraclasts. The absence of double-valved brachiopods indicates a high-energy environment. The specimens of the 7 species found here are usually larger than those of other localities. If brachiopods and crinoids are left out of account,, the macrofauna of the formation in the four localities is poor; only rare representatives of Bryozoa, Corallinacea and fragments
