Zamites pateri J.Kvaček

Plant Fossil Names Registry Number: PFN003021


Author: J. Kvaček

Rank: species


Reference: Kvaček, J. (2022): New species of Zamites from the Cenomanian of the Bohemian Cretaceous Basin. – Fossil Imprint 78(2): 425–431.

Page of description: 427

Illustrations or figures: text-figs 1, 2


Holotype F 5185, National Museum, Prague, the Czech Republic
Figures: text-figs 1, 2

Original diagnosis/description

Leaf simply pinnate, pinnae linear to narrowly lanceolate, entire-margined. Base of pinna slightly contracted, apex unknown. Veins 2–3 per mm, simple or rarely dichotomising. Leaf hypostomatic. Adaxial cuticle very thin, bearing polygonal cells with tightly sinuous anticlinal walls. Mesophyll present, consisting of isodiametric cells. Abaxial cuticle thick, showing distinct marginal band bearing tetragonal ordinary cells. Inner part of leaf consists of costal ordinary cells forming zones typically narrower than intercostal zones, formed by 4–5 rows of syndetocheilic stomata (sometimes ill-defined). Subsidiary cells large, ellipsoidal, thickly cutinised, bearing one or several papillae. Ordinary cells of intercostal zone polygonal in shape with roughly straight anticlinal walls. Ordinary cells of costal zones quadrangular in shape with sinuous anticlinal walls. Epidermal cells of both costal and intercostal zones bearing 3–5 papillae.


Cretaceous, Upper Cretaceous, Cenomanian
Peruc-Korycany Formation


Czech Republic
Pecínov quarry, 50 km west of Prague

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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