Palaeoenvironmental Analysis Of The Messinian Macrofossil Floras Of Tossignano And Monte Tondo (Vena Del Gesso Basin, Romagna Apennines, Northern Italy) Author Teodoridis, Vasilis Charles University in Prague, Faculty of Education, Department of Biology and Environmental Studies, Magdalény Rettigové 4, 116 39 Prague 1, the Czech Republic; e-mail: vasilis. teodoridis @ pedf. cuni. cz Author Kvaček, Zlatko Charles University in Prague, Faculty of Science, Institute of Geology and Palaeontology, Albertov 6, 128 43, Prague 2, the Czech Republic; e-mail: kvacek @ natur. cuni. cz Author Sami, Marco Museo Civico di Scienze Naturali, Via Medaglie d’Oro 51, 480 18 Faenza (RA); Italy; e-mail: marco. sami @ cheapnet. it Author Utescher, Torsten Senckenberg Research Institute, Frankfurt am Main; Steinmann Institute, University of Bonn, Nussallee 8, 531 15 Bonn, Germany; e-mail: utescher @ geo. uni-bonn. de Author Martinetto, Edoardo Dipartimento di Scienze della Terra, Università degli Studi di Torino. Via Valperga Caluso 35, I- 10123 Torino, Italy; e-mail: edoardo. martinetto @ unito. it text Acta Musei Nationalis Pragae Series B 2015 2015-12-31 71 3 - 4 249 292 https://www.mendeley.com/catalogue/24628ce2-d0a9-3b24-8b6c-c42c9e0f0bfd/ journal article 10.14446/AMNP.2015.249 2533-4069 13183696 Acer cf. integrilobum UNGER Pl. 10, Fig. 9–10 Incomplete leaf and fragments palmately 3-lobed, 24 to 67 mm long and 27 to 81 mm wide, medial and lateral lobes widely oblong to triangular, apices shortly attenuate, base cordate with petiole up to 12 mm long, margin entire, sinus acute, widely opened, venation basal actinodromous, primary veins strong, moderate, secondary veins thinner, alternate, looping, tertiary veins alternate to opposite percurrent, curved to sinuous, venation of the higher orders regular polygonal reticulate, areolation well developed, 3- to 4-sided. Maple foliage characterized by such a trilobate form with almost entire lobes was revised by Walther (1972) who proposed a new concept for A. integrilobum and we adhere to his concept. The leaf figured on pl. 10, fig. 10 may also resemble Trichosanthes LINNAEUS ( Kvaček et al. 2008 , pl. 9, fig. 13), however without cuticles the assignment is doubtful. M a t e r i a l. Leaf impressions (Monte Tondo MSF1500, MSF1501, MSF1502, MSF1503, MSF1509).