Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 89. (Budapest 1997)

Philippe, M. ; Barbacka, M.: A reappraisal of the Jurassic woods from Hungary

cioxylon hungaricum, a very common species in Úrkút area, was never found in the Pécs area, while it is known for Early Liassic in France, Denmark and Germany (PHILIPPE 1995). On the other hand, the species in the Pécs area have not been found elsewhere to our knowledge. The xyloflora of the Pécs area may look poorer, with only two taxa. However this is probably a bias due to the poor preservation. Indeed, Hettangian palaeoflora in the Pécs area, as seen by leaf imprints, is rich and diverse (BARBACKA 1991, 1992, 1994b), but wood is generally poorly preserved. It is also amazing that Xenoxylon has never been found in Hungary. This genus is widespread, during the Lias: France, England, Germany, Poland and eastward to Khazakstan and Japan (PHILIPPE 1995). As this genus was related to wet temperate mires (PHILIPPE & THÉVENARD 1996), the Liassic climate of Hungary was probably unsuitable for it. It is also noteworthy that the genus Agathoxylon is common in Úrkút deposits, whereas in all the rest of Europe there are only two known Liassic occurrences, in Germany and in France, both from the Lower Toarcian. * * * Acknowledgements - The authors wish to express their thanks to Mrs. JUDIT BALÓ (Rákóczitelep), Dr. ERZSÉBET MIHALIK (Szeged) Prof. Dr. MIKLÓS KEDVES and Mr. PÉTER SZINAI (Budapest) for their help in collection reviewing. We would like to thank Mr. MIKLÓS GÁL (Komló), for his contribution during field collecting. REFERENCES ANDREÁNSZKY, G. (1949): Baumstämme aus der unteren Kreidezeit. - Földt. Közi. 79: 244-252. ANDREÁNSZKY, G. (1951): Der versteinerte Wald von Miköfalva und einige andere verkieselte Baumstämme aus Ungarn. —Ann. Biol. Univ. Hung. 1: 15-24. BARBACKA, M. (1991): New data about Liassic fossil plants in the Mecsek Mountains (South Hungary). -Annls hist.-nat. Mus. natn. hung. 83: 17-23. BARBACKA, M. (1992): The Liassic seed ferns of the Mecsek Mountains (S. Hungary). - In: KOVAR-EDER (ed.): Paleovegetational Development in European Regions Relevant to Its Paleofloristic Evolution. Proc. Pan. Eur. Palaeobot. Conf. Vienna: 257-263. BARBACKA, M. (1994a): Reconstructions of stomata in Komlopteris Barbacka and Pachypteris Brongniart and iheir adaptation to climate. - Annls. hist-natn.hung. 86: 5-11. BARBACKA, M. (1994/?): Pachypteris banatica (Humml) Doludenko from Liassic locality in Mecsek Mountains, Hungary. -Acta Palaeobot. 34 (I): 5-19. BONA, J. (1963): Palynologische Untersuchungen zwecks einer Fernkorrelierung der liassischen Steinkohlenflöze des Mecsek -Gebirges. - Földt. Közi. 93: 15-23. BONA, J. (1983): A Mecseki felsőtriász és alsóliász palynológiai vizsgálata. [Palynological examination of Mecsek Mountains Upper Triassic and Lower Liassic] - Discussiones Palaeontologicae 29: 47-57. BÖCKH, J. (1874): A Bakony déli részének földtani viszonyai, I. rész. [The geological setting of the Southern Bakony Mountains, part \ .)-M. K. Földt. Int. Évk. 2: 31-166. BÖCKH, J. (1878): A Bakony déli részének földtani viszonyai IL rész [The geological setting of the Southern Bakony Mountains, part 2].-M. K. Földt. Int. Évk. 3: 1-157. GÉCZY, B. (1968): Ammonoides du Lias supérieur d'Úrkút. - Földt. Közi. 98: 218-226. GÓCZAN, F. (1956): A komlói liász feketekőszéntelepek azonosítására irányuló pollenanalitikai vizsgálatok. [Pollenanalysis as a method for coal layers identifikation in the Liassic of Komló.] - Földt. Int. Évk. 45 (1): 135-166.