Acer cf. integerrimum (VIVIANI) MASSALONGO

Teodoridis, Vasilis, Kvaček, Zlatko, Sami, Marco, Utescher, Torsten & Martinetto, Edoardo, 2015, Palaeoenvironmental Analysis Of The Messinian Macrofossil Floras Of Tossignano And Monte Tondo (Vena Del Gesso Basin, Romagna Apennines, Northern Italy), Acta Musei Nationalis Pragae Series B 71 (3 - 4), pp. 249-292 : 265

Acer cf. integerrimum (VIVIANI) MASSALONGO

Pl. 10, Fig. 13–14

Incomplete leaf and fragments palmately 5-lobed, 51 to 83 mm long and 51 to 98 mm wide, medial and lateral lobes oblong to triangular, apices shortly attenuate and blunt, base deeply cordate with petiole up to 17 mm long, margin entire, sinus rounded, 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.

The presented pentalobate maple leaves with almost entire-margined lobes fit into the concept of A. integerrimum , as currently accepted (e.g., Bůžek 1971).

M a t e r i a l. Leaf impressions (Monte Tondo MSF1504,

MSF1505, MSF1507).