Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 90. (Budapest 1998)

Dulai, A.: Early Jurassic brachiopods from the basal layers of the Pisznice Limestone of Lábatlan (Gerecse Mts, Hungary)

monites were found only in die upper part, which is Early Sinemurian (Semicostatum Zone) in age (PÁLFY, pers. comm). The distribution of the brachiopod species within the figured section is shown on Fig 13. There are several brachiopod species at the Tölgyhát quarry and Póckő localities, which can also be found in the lower, thick-bedded layers of the Vöröshíd quarry. Ten species were determined in the lower 10 layers of the Vöröshíd quarry, of which 6 species are also known from the Lábatlan localities. Calcirhynchia plicatissima ranges through the sections at both area. Cuneirhynchia cartieri and Zeilleria mutabilis are present in all layers at the Lábatlan localities, but only at the thick-bedded layers at the Vöröshíd quarry. Liospiriferina alpina and Koninckodonta sp. are distributed in the lower part (up to layer 35) of the Vöröshíd quarry. "Rhync hone lia" triquetra can be found between layers 10 and 20 at the Vöröshíd quarry, in transitional position between the two different lithologies formations. Phymatothyris aff. cerasulum is very frequent at the Lábatlan localities but occurs only in the upper part of the Vöröshíd quarry. Hettangian Sinemurian Pliensbachian Calcirhynchia plicatissima Calcirhynchia plicatissima Calcirhynchia laevicosta Calcirhynchia laevicosta Calcirhynchia fascicostata Calcirhynchia fascicostata Salgirella albertii Salgirella albertii Prionorhynchia cf. greppini Prionorhynchia cf. greppini Cuneirhynchia cartieri Cuneirhynchia cartieri Cuneirhynchia fraasi Cuneirhynchia fraasi "Rhynchonella" triquetra "Rhynchonella" triquetra Liospiriferina alpina Liospiriferina alpina Liospiriferina aradasi Liospiriferina guembeli Lobothyris andleri Lobothyris andleri Zeilleria mutabilis Zeilleria mutabilis Zeilleria alpina Zeilleria alpina Zeilleria choffati Zeilleria cf. batilla Fig. 14. Previously established stratigraphie ranges of the determined species of the Lábatlan localities