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

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

DISCUSSION The first set of inferences from this study are taxonomical. Torreyoxylon boureaui GREGUSS (1967) is the generotypus (WATT 1982). Thus, as we refer the original material corresponding to this name to Agathoxylon, Torreyoxylon GREGUSS becomes a junior taxonomic synonym of Agathoxylon HARTIG. If the name Torreyoxylon has to be conserved, a selection of neotype is necessary (Art. 14.8 of the Code). Equally, Pseudagathoxylon becomes a junior taxonomic synonym of Simplicioxylon. The lectotype of Simplicioxylon hungaricum, an important species for the Liassic of Europe has been recovered. It is confirmed as a well preserved, and thus suitable, wood. Through careful investigation of the slides, 14 binomials have been related to their type material. Some paleobiogeographical notes are also of interest. Apart from two poorly preserved woods from Villány, paleoxylological data for the Jurassic of Hungary are actually confined to only two areas: the Bakony Mountains with the localities of Úrkút and Eplény and the Mecsek Mountains with the localities of Pécsbányatelep, Vasas and Komló (Table 1). All the material is found within the Liassic, except for some silicified samples found within Úrkút Aptian Clay. However, it seems highly probable that these are actually reworked from underlying Liassic deposits. Wood data from these two areas do not overlap stratigraphically : Úrkút area data are Late Liassic in age whereas the Pécs area yielded samples from Early Liassic. So one has to be careful when comparing the two paleoxyloflora. Up-to-now these do not have any common genera. Moreover, SimpliTable 1. Jurassic woods in Hungary Species Mecsek Mts Bakony Mts Agathoxylon agathiforme - + Agathoxylon sp. 1 (= Araucarioxylon sp. 7 Greguss 1967) + Agathoxylon sp. 2 (= Araucarioxylon sp. 10 Greguss 1967) + ? Agathoxylon sp. 3 (= Araucarioxylon sp. 2 Greguss 1967) + 1 Agathoxylon sp. 4 (= Araucarioxylon sp. 5 Greguss 1967) + 1Agathoxylon sp. 5 (sample from Szaboz, 1971) - + Araucarioxylon sp. Greguss 1952 - + Araucarioxylon sp. 4 Greguss 1967 - + Baieroxylon lindicianum - + Callitrixylon hungaricum + — Protelicoxylon parenchymatosum - + Platyspiroxylon sp. + '?Podocarpoxylon sp. + Prototaxodioxylon sp. + Pteridospermaexylon theresiae + Simplicioxylon hungaricum - +