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GRYC, V., SAKALA, J.: Identifi cation of fossil trunks from Bukkabrany newly installed in the Visitor Centre of the Ipolytarnoc Fossils Nature Reserve (Novohrad ‐ Nograd Geopark) in Northern Hungary. Acta univ. agric. et silvic. Mendel. Brun., 2010, LVIII, No. 5, pp. 117–122 The Late Miocene forest was discovered in the opencast lignite mine of Bukkabrany which is situated in the foothills of the Bukk Mountains (NE Hungary). Sixteen stumps were exposed upright in 2007 at their original position. Five stumps were installed in the Ipolytarnoc Fossils Nature Reserve. They are identifi ed in the present paper. The wood of one fossil trunk (No. 1) has been identifi ed as Glyptostroboxylon rudolphii, which represents the wood of Glyptostrobus. Its main microscopic features are: visible growth rings, gradual transition between early- and late wood, rather small opposite bordered pits in 1–2 loosely spaced vertical rows with infrequent crassulae, uniseriate rays formed of procumbent cells without ray tracheids, 1–3 “glyptostroboid” cross-fi eld pits per fi eld and resin canals absent. The four remaining stumps (Nos. 2–5) have been identifi ed as Taxodioxylon germanicum. Their main microscopic features are: growth rings, abrupt transition between early- and late wood, opposite bordered pits in 1–3 regular vertical rows with frequent crassulae, uniseriate rays formed of procumbent cells without ray tracheids, 1–3 taxodioid cross-fi eld pits per fi eld arranged mostly in one horizontal row, axial parenchyma both in early and late wood (diff use arrangement) with smooth transverse end walls and resin canals absent. This species most probably represents the wood of Sequoia.

acta universitatis agriculturae et silviculturae mendelianae brunensis

Identification of fossil trunks from Bükkábrány newly installed in the Visitor Centre of the Ipolytarnóc Fossils Nature Reserve (Novohrad - Nógrád Geopark) in Northern Hungary