Tetracentronites MATHIESEN, 1932

Sakala, Jakub, Selmeczi, Ildikó & Hably, Lilla, 2018, Reappraisal Of Greguss’ Fossil Wood Types And Figured Specimens From The Cenozoic Of Hungary: Overview, Corrected Geology And Systematical Notes, Fossil Imprint 74 (1 - 2), pp. 101-114 : 107

Genus Tetracentronites MATHIESEN, 1932

30) Tetracentronites hungaricum GREGUSS, 1964 Pl. 1, Figs 15, 16

M a t e r i a l. Holotype HNHM-PBO 2008.270 .3. (= 3 slides: tr + tg + rd).

D e s c r i p t i o n. See Greguss (1969: 24 (only mentioned but without description, more in Greguss 1964), pl. VII, figs 1, 2, pl. VIII, figs 3–10, pl. IX, figs 11–20, legend p. 132).

N o t e s. The holotype of this homoxylous wood was rediscovered in Budapest by M. Philippe. It has up to 3-seriate rays (Pl. 1, Fig. 15) and radial tracheid walls with scalariform to dense circular bordered pits (Pl. 1, Fig. 16). However, as reported by Philippe et al. (2010), this “angiosperm” wood is actually a reworked Carboniferous wood of the Pitys type (determination by J. Galtier), so very probably represents an extinct pteridosperm and not a angiosperm. However, for the purpose of this overview and its clarity, we place it here following Greguss’ original classification. Concerning the geological setting, the locality (Tokaj) was listed by Greguss as Sarmatian as the volcanics of that age occurred there. On the other hand, Palaeozoic rocks have not been recorded on the surface in the immediate vicinity. As a result, the Carboniferous age of the fossil can either be explained by the existence of Palaeozoic xenoliths (in Sarmatian volcanics), which may have contained the plant remains, or by a redeposition of Carboniferous sediments from a significant distance (e.g. surroundings of Veľká Tŕňa in Slovakia, further north).