A new diverse charophyte flora and biozonation of the Eocene bauxite cover-sequence at G ant (V ertes Hills, Hungary) Author Trabelsi, Khaled Universit ́ e de Sfax, Facult ́ e des Sciences de Sfax, CP 3000, Sfax, Tunisia; & Universit ́ e de Tunis El Manar II, Facult ́ e des Sciences de Tunis, LR 18 ES 07, C. P. 2092, Tunis, Tunisia; & Department of Geology, University of Vienna, UZA 2, Althanstrasse 14, 1090 Vienna, Austria; Author Sames, Benjamin Department of Geology, University of Vienna, UZA 2, Althanstrasse 14, 1090 Vienna, Austria; & Sam Noble Museum, University of Oklahoma, 2401 Chautauqua Ave, Norman, OK 73072, USA; Author Wagreich, Michael Department of Geology, University of Vienna, UZA 2, Althanstrasse 14, 1090 Vienna, Austria; Author K ́ azm ́, Miklos Department of Palaeontology & MTA-ELTE Geological, Geophysical and Space Science Research Group, Eotvos Lorand University, Pazmany P ́ eter s ́ etany 1 / C, 1117 Budapest, Hungary; Author , Andrea Mindszen Author Mart ́ ın-Clo, d Carles text Journal of Systematic Palaeontology 2021 2021-07-26 19 7 541 563 http://dx.doi.org/10.1080/14772019.2021.1938264 journal article 10.1080/14772019.2021.1938264 1478-0941 10883641 Raskyella peckii var. caliciformis (Soulíe-M¨arsche, 1974) comb. nov. Trabelsi & Mart́ın-Closas ( Fig. 3I–P ) Basionym. Raskyella caliciformis Soulíe-M¨arsche, 1974, 114, text-fig. 2 (pl. I, figs 1–5). 1974 Raskyella caliciformis sp. nov. Soulíe-M¨arsche: 112, pl. 1, figs 1–5. Figure 5. Frequency distribution of A, height, B, width, C, number of convolutions, and D, height/width ratio (ISI) of the Raskyella peckii var. caliciformis population (50 gyrogonites measured), from sample G-2.5 in the bauxite cover-sequence of the Ǵant section. 1981 Raskyella caliciformis Anadon & Feist : pl. 1, figs 6, 7; pl. 2, figs 7, 8. Material. Sixty-three gyrogonites in sample G-2.5. Collection numbers of figured specimens: HNHM-PBO 1509–1516. Description. Large sized gyrogonites (650–1000 M m high and 750–1050 M m wide) of globular to oblate shape ( ISI 80–105), showing laterally 6–9 (usually eight) convolutions ( Fig. 5 ). Spiral cells flat to slightly concave ornamented with stout, vertical to slightly inclined, well individualized tubercles ( Fig. 3I, K ), which are the main diagnostic character of this variety. Apex broadly rounded to truncated showing five opercular cells placed at the end of the spiral cells. The opercular cells are sometimes convex and somewhat polygonal in shape ( Fig. 3N ), rather than rounded, which is the reason why the dehiscence opening appears sometimes irregularly star-shaped ( Fig. 3O ), rather than rose-shaped ( Fig. 3L ), as already noted by Soulí e-M ¨arsche (1974) in the type material. The internal cast of the gyrogonite ( Fig. 3M ) shows straight ridges perpendicular to the well-marked, undulated spiral cells. This wavy surface is uncommon in the inside of other raskyellacean gyrogonites and is thought to correspond internally to the external tubercle ornamentation. Distribution. This is the first record of R . peckii var. caliciformis in Hungary . It was previously described from the Bartonian of south France (Soulíe-M¨arsche 1974; Riveline 1986 ), and from the lower Bartonian (Auversian local stage) of the Ebro Basin, Catalonia , Spain (Anadon & Feist 1981; Anadon et al . 1992).