L. Hably szerk.: Studia Botanica Hungarica 22. 1990 (Budapest, 1990)

quately determined, because it was preserved only at a short phase. The midvein is fairly strong, the secondary veins are very thin, The veins are branching off the midvein in an arch, running into obtuse teeth in the part near the margin here they are already extremely thin. The veins of secondary order can be connected in the teeth or, they can be also connected through the veins of the tertiary order. The margin and the vein system of the leaf is very specific, the exact analogy of which was not met in previous descriptions. Considering that we have only one specimen at hand containing no traces of the epidermis, we cannot give its more exact taxonomical assignment. Quercus sp. type III. Pl. XXIII, Fig. 1; Fig. 109. Material: No.: 76.101.1. 1 piece Description: The length of the leaf is 5.8 cm, its width is about 3 cm. The apex is acute, the basis fragmented. The shape of the lamina is obovate, the margin of the leaf is fragmented, still the lobes are fairly well visible, though being injured, they do not show their original form. The venation is cra-spedodromous

, the secondary veins terminating in the apex of the lobes. The print reminds in some features to Q. pseudorobur

. The species was described by KOVÁTS (1856) from the Sarmatian flora of Erdőbénye. It was mentioned from the European parts of the USSR, later from Western Siberia and the Southern Altai. ZASTAWNIAK (1980) mentioned it from the Sarmatian flora of Poland. It can be recognized under several synonyms in several floras of the European Miocene and Pliocene. Betula Betula L. cf. Betula prisca Ettingshausen Pl. XXIV, Fig. 3; Figs. 94-9B. 1851 1852 1852 1855 1855 1866 1868 1869 1919 Betula prisca Ett.; Ettingshausen, p. 11, Pl. 1, Figs. 15Betula prisca Ett.; Ettingshausen, p. 5, Pl. 1, Fig. 3. Carpinus betuloides Unger; Unger, p. 40, PI. 20, Figs. 6-8 Betula subtriangularis Goepp.; Goeppert, p. 10. PI. 3. Fia Betula prisca Ett.; Goeppert, ibid, p. 11, uc Luia guu VL lUII^U Betula prisca Ett Betula prisca Ett Betula prisca Ett Betula prisca Ett Betula prisca Ett PI. 2, Fig. 12. 1956 Betula prisca Ett 2, 4-8; Text-fig. 10, PI. 3, Fig. 2. PI. 3, Figs. 11-12. 47, PI. 14, Figs. 14-16. 25, Figs. 9a, 20. 29, Pl. 1, Figs. 24-26. - 37, Pl. 1, Fig. 5; Ettingshausen, p ; Heer, p. 148, PI ; Ettingshausen, p. , ; Reimann in Kräusel, p ; Kristofovich et al., p. 92, Pl. 22, Figs. 38. lv, Material : 6 pieces No.: 76.21.1.; 76.64.1.; 76.150.1.; 76.189.1.; 76.190.1.; 76.301.1 Description: The bulk of the pieces are medial fragments, thus neither the basis, nor the apex is visible. The toothed margin can be studied in case of a single specimen, in all other cases the margin of the leaf is missing. The vein system is craspedodromous

. The secondary veins are branching off from the midvein more densely than in case of any other leaves of Betula sp. The leaves can be considered of small and medium size, though their real length cannot be measured, due to their fragmentary state. The tertiary veins are not visible on the print. The secondary veins are rigid, reaching the margin practically straight from the margin. The fragments bear the nearest resemblance to Betula prisca

, however their fragmentary state does not allow us to identify them with this species unambiguously. 27