Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 19. 2001. (Budapest, 2001)

Anurans and squamates from the Lower Pliocene (MN 14) Osztramos 1 locality Class Reptilia LINNAEUS, 1758 Order Sauria MCCARTNEY, 1802 Family Geckonidae GRAY, 1825 Geckonidae indet. (Figure 4: A, B) Material — Osztramos 1/b: 1 dentary (HNHM. No. V.99.15). Description and comments — The dentary belonged to a small sized individual. The anterior and the posterior tip of the bone are broken off. The Meckel's groove is closed in the posterior area. The dentition is of pleurodont type. The teeth are numerous and bearing monocuspid tips. In the available specimen, 18 tooth positions are preserved. Surprisingly, remains of Geckonidae have never been reported from the territory of Central Europe till now. In Western Europe at least four genera, and also indeterminate geckonids of Eocene — Pliocene ages, have been described (RAGE & AUGE 1993, and references therein). Family Lacertidae BONAPARTE, 1831 Genus Lacerta LINNAEUS, 1758 Lacerta sp. (Figure 4: C-F) Material — Osztramos 1/b: 1 premaxilla, 1 frontal (HNHM. No. V.99.16); Osztramos 1/c: 1 premaxilla, 1 maxilla, 10 dentaries, 4 vertebrae (HNHM. No. V.99.17); Osztramos 1/e: 1 maxilla (HNHM. No. V.99.41). Description and comments — The material belonged probably to two distinct forms. The premaxilla, coming from Osztramos 1/b, seems to have 9 teeth (Figure 4: E, F) and closely resembles that of the Recent L. agilis (RAUSCHER 1992: Plate 10: fig. 1). Another specimen from Osztramos 1/c, with a thinner processus nasalis (having its dorsal part broken off), probable belonged to another member of the genus. The morphology of the fragmentary frontal and dentary is similar to the condition observed in L. viridis. The Meckel's groove is closed at the level of the first tooth position. The dentition is of pleurodont type; the teeth have bicuspid or tricuspid tips. Figure 4 — Lizards from Osztramos 1. — A, B: dentary of Geckonidae indet. (OIB, No.); C: frontal of Lacerta sp. (OIB, No.); D: dentary of Lacerta sp. (OIC, No.), E, F: premaxilla of Lacerta sp. (OIB, No.), G, H: dentary of Anguis sp. (OIB, No.), trunk vertebra of Anguis sp. (OIC, No.). — A, G: lateral views; B, D, H: medial views; C, E, I: dorsal views; F, J: ventral views. Family Anguidae GRAY, 1825 Genus Anguis LINNAEUS, 1758 Anguis fragilis LINNAEUS, 1758 (Figure 4: G-J) Material — Osztramos 1/b: 2 osteoderms, 1 dentary, 10 trunk vertebrae (HNHM. No. V.99.18); Osztramos 1/c: 1 dentary, 9 vertebrae (HNHM. No. V.99.19); Osztramos 1/e: 3 vertebrae (HNHM. No. V.99.42). Description and comments — The dentary preserved 9 or 10 tooth positions. The dentition is of pleurodont type; the monocuspid teeth are recurved posteriorly; the height of the posterior teeth is considerably reduced. The Meckel's groove is narrow, and is closed in the vicinity of the first tooth position.