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)

BRACHIOPOD DIVERSITY AND ABUNDANCE The number ot" specimens is shown on Fig. 6. Nearly the same number of brachiopod specimens was found in both layers of the Tölgyhát quarry (60 and 56 specimens respectively). However, more than half of the specimens in the layer 1 and 3/4 of the speciTölgyhát quarry Póckő