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

Anurans and squamates from the Lower Pliocene (MN 14) Osztramos 1 locality Conclusion Osztramos 1 locality produced a more complex herpetofauna than the stratigraphically older Polgárdi localities (VENCZEL 1994, 1997, 1998). Its composition suggests mild and wet climate and a diversified paleoenvironment, with forests and a water source in the area. However, the differences observed in the fossil record of Osztramos 1/b, 1/c and 1/e locality may be linked to the rapid change of paleoecological conditions during the accumulation of the sediments. Some taxa are recorded for the first time in the Hungarian Neogene {Eopelobates sp., Geckonidae indet., Eryx sp., cf. Neonatrix sp., as well as Vipera cf. ammodytes and V. cf. berus), suggesting that this period favored their rapid spread in the Carpathian Basin. On the other hand a number of forms still inhabiting the area in the Late Miocene (e.g. Macropiperd), were replaced by newcomers from the East. The joint record of 'aspis group' and 'berus group' of the genus Vipera in Osztramos 1 locality indicates that the appearance of the latter group in Central Europe took place more earlier (at least during Lower Pliocene times) than considered SZYNDLAR & RAGE 1999). *** ACKNOWLEDGEMENTS — The author is deeply indebted to Prof. László KORDOS (Hungarian Geological Museum in Budapest), who gave valuable information on the Osztramos localities and helped procuring the relevant literature. Thanks are due to Dr. Mihály GASPARIK (Hungarian Natural History Museum in Budapest) who made the fossil material under his care available for the study. During this study, the author received a Bolyai János Research Grant of the Hungarian Academy of Science. References BOLKAY, J. (1913): Additions to the fossil herpetology of Hungary from the Pannonian and Praeglacial période. — Mittbeilungen aus dem Jahrbuche der königlichen Ungarischen geologischen Reicbsanstalt, 21(7): 217-230. FEJÉRVÁRY-LÁNGH, A. M. (1923): Beiträge zu einer Monographie der fossilen Ophisaurier. — Palaeontologia Hungarica, 1(7): 123— 220. FEJFAR, O., HEINRICH, W.-D. & LINDSAY, E. H. (1998): Updating the Neogene rodent biochronology in Europe. — Mededelingen Nederlands Instifuut voor Toegepaste Geowetenschappen TNO, 60: 533— 554. HODROVA, M. (1981): Plio-Pleistocene frog fauna from Hajnácka and Ivanovce, Czechoslovakia. — Vestnik Ustfedntho ústavu geologického, 56(4): 215-224. HODROVA, M. (1985): Amphibia of Pliocene and Pleistocene Vceláre localities (Slovakia). — Casopis pro mineralogii a geologii, 30(2): 145-162. HODROVA, M. (1987): Amphibians from the Miocene sediments of the Bohemian Karst. — C~asopis pro mineralogii a geologii, 32(4): 345-356. HODROVA, M. (1988): Miocene frog fauna from the locality Devínska Nová Ves — Bonanza. Vestnik Ustredního ústavu geologického, 63(5): 305-310. HOSSINI, S. (1993): New species of Latonia from the Lower Miocene of France. —Amphibia-Reptilia, 14: 237-245. JÁNOSSY, D. (1972): Middle Pliocene microvertebrate fauna from the Osztramos Loc. 1. (Northern Hungary). —Annales HistoricoNaturales Musei Nationalis Hungarici, 64: 27-52. JÁNOSSY, D. (1986): Pleistocene Vertebrate Faunas of Hungary. — Akadémiai Kiadó, Budapest, 208 pp. JÁNOSSY, D. & KORDOS, L. (1977): Az Osztramos gerinces lelőhelyeinek faunisztikai és karsztmorfológiai áttekintése (1975ig). [The faunistical ans karst-morphological review of palaeontological localities for vertebrates at Osztramos (Northern Hungary.)] — Fragmenta Mineralogica et Palaeontologica, 8: 39-72. [In Hungarian with English summary] KORDOS, L. (1994): Revised biostratigraphy of the early man site at Vértesszölös, Hungary. — Courier Forschungs-Institut Senckenberg, 171: 225-236. KRETZOI, M. (1956): A Villányi hegység alsó-pleisztocén gerinces faunái. [Die altpleistozänen Wirbeltierfaunen des Villányer Gebirges.]

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