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

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

RESULTS OF THE REVIEW According to our knowledge 21 Hungarian Jurassic wood taxa with specific ranks have been described. Some are actually reworked into Early Cretaceous deposits (in Úrkút). We managed to investigate the original material of 14 from these 21 taxa. There is a high rate of synonymy, probably as these Hungarian fossil woods have always been studied by neoxylologists, who are easily confused by some bias due to fossilization. The taxonomical review unites the 14 revised taxa under 9 names only. We tried to put the reviewed slides and previously described, unequivocally in relationship. It has not been easy, as accurate labels usually lacked and as many photographs are obviously touched up (especially in GREGUSS 1967). Detailed comparisons of slides and illustrations, although time consuming, gave good results. However, it must be noted that some slide sets in the collections may be composite. Taxonomical synonymy for each taxon is given only with Hungarian woods. Among the material we reviewed, some samples are impossible to attribute to any previously described taxa, or to any genera, because of their bad preservation. These are: S6, set of 6 slides in JAS, labelled "Úrkút, felső liász, II akna" [Úrkút, Upper Liassic, II shaft]; this wood is too deeply altered for generic determination. S8, set of 2 slides in JAS, labelled "Cseh, N., 1962, Úrkút, Lejtős akna, szenesedéit fatörzs apti agyagban" [CSEH, N., 1962, Úrkút Lejtős shaft, coalified trunk in the Aptian clay (now Albian clay) this wood looks very much like pi 13 fig. 6-9 in GREGUSS (1967), illustrating his Araucarioxylon sp. 4, but the slide labels do not fit with the GREGUSS' indications of provenance; we have not been able to find xylologic details to put this set S8 in relationship with any described wood; conservation is too poor for determination. S9, set of 3 slides in JAS, labelled "Krivan D., 1960, Pécs, Gyárváros, alsó liász" [KRIVAN D., 1960, Pécs, Gyárváros, Lower Liassic]; preservation is too poor for determination. Genus Agathoxylon HARTIG, 1848 Agathoxylon agathiforme (KEDVES) comb. n. Nomenclatural synonymy: 1956 Dadoxylon agathiforme KEDVES, p. 3, Úrkút, Upper Liassic. Taxonomical synonymy: 1967 Agathoxylon mecsekense GREGUSS, p. 20, pi. 8 fig. 1-11, Úrkút, Upper Liassic; slides seen in JAS. 1967 Araucarioxylon resiniferum GREGUSS, p. 21, pi. 9 fig. 1-10, Úrkút, Upper Liassic; slides seen in JAS. 1967 Brachyoxylon sp. seu Dadoxylon sp. seu Baieroxylon sp. GREGUSS, p. 33, pi. 21 fig. 1-10, István shaft. Úrkút, Upper Liassic; slides seen in JAS. 1967 Torreyoxylon boureaui GREGUSS, p. 44, pi. 32 fig. 1-11, Lejtős shaft, Úrkút, Aptian; slides seen in JAS.