Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 83. (Budapest 1991)

Fischer, O. ; Hably, L.: Pliocene flora from the alginite at Gérce

Quercus roburoides GAUDIN 1859 (Plate III: 1, 3, Figs 3,6) 1858 Quercus roburoides GAUDIN; GAUDIN & STROZZI, p. 44, Plate 3, fig. 14. 1986 Quercus roburoides GAUDIN; VELITZELOS & KNOBLOCH, p. 24, Plate 10, fig. 10, Plate 11, figs 1, 3, 6,8. Material: No. 90. 37.1., 90. 38.1. and unnumbered specimens (5 specimens). Description: The length of the biggest specimen is 13 cm, 9 cm wide. Apex and base are missing. Its shape is obovate, margin toothed. Teeth are quite big, rounded, they are very close to each other. Sinuses are narrow. The apex of teeth obtuse, in the other specimen acute. At this specimen sinuses are wide. This remain might originate from the basal part of the leaf. Venation craspedodromous, midvein strong. Secondary veins issued from the midvein at 0.8-1.2 cm distance from each other. Angle of divergence 40°-45°-56°. Between secondaries anastomosing network is formed. Quercus cf. pseudocastanea GÖPPERT 1852 (Plate III: 4, Plate V: 3, Figs 8,10) 1852 Quercus pseudocastanea GöPP.; GÖPPERT, p. 274, Plate 35, figs 1, 2. 1986 Quercus pseudocastanea GöPP.; VELITZELOS & KNOBLOCH, p. 24, Plate 11, figs 2,4, 7. Material: No. 90. 36. 1. and unnumbered specimen (2 specimens). Description: Fragments without base and apex preserved. Margin is toothed. The apical side of the teeth is much shorter than the basal one. Sinuses are curved. Venation craspedodromous. Midvein strong, secondary veins issued from midrib at 0.9-1.2 cm distance from each other. Between secondaries a dense polygonal network is present. Quercus sp. 1. (Plate V: 6, Fig. 7) Material: No. 90. 28.1. (1 specimen). Description: Length of leaf 6.1 cm, width 1.3 cm. Apex is missing, base acute, decurrent. Margin is toothed. The apical side of the teeth is shorter than basal one, both of them are straight. Venation craspedodromous. Midvein inconspicuous. Secondary veins issued from midrib at 0.6 cm distance from each other. Angle of divergence 56°-58°. Between secondaries a polygonal, fine network exists. Quercus sp. 2. (Plate V: 2, Fig. 9) Material: No. 90. 29.1. (1 specimen). Description: 3.6 cm length, 2.9 cm wide leaf without petiole. Its shape is obovate. Base and apex missing. Margin poorly preserved. Some teeth are visible at the apical part of the lamina. Venation craspedodromous. Secondary veins are irregular. They are from the midvein at 0.4-0.8 cm distance from each other. Angle of divergence is 62° at the basal part of the lamina, and 48° at the apical part.