Dicotylophyllum sp. 4

Halamski, Adam T., 2013, Latest Cretaceous leaf floras from southern Poland and western Ukraine, Acta Palaeontologica Polonica 58 (2), pp. 407-443 : 432

Dicotylophyllum sp. 4

Fig. 12D, H.

1907 Diospyros rotundifolia Lesqx. ; Nowak 1907a: 55, pl. 1: 10, 15.

Material.—L PB−K.15 (formerly 7677) from Potelych, JS 9 from Krasnobród.

Description.—Blade attachment marginal, laminar size nanophyll (L PB−K.15: length of the blade ca. 34 mm) to microphyll (JS 9: length of the blade ca. 7 cm), length to width ratio 1.75 to 1.9, laminar shape elliptic, with median symmetry and basal symmetry. Margin is entire with base shape straight (L PB−K.15) to cuneate (JS 9) and base angle ca. 70–80 °; apex probably rounded. There is a single straight primary vein; lower order veins poorly preserved.

Remarks.—These two poorly preserved leaves are described under a single entry because of their mutual likeness in blade form, despite differences of size and base shape. Dicotylophyllum sp. 2 is more elongate and Dicotylophyllum sp. 5 . more transverse. Given these differences, the material is described as separate morphotypes; it may have been, however, that the numer of biologic species was smaller than that of morphotypes.