Archeampelos betulifolia M.Moiseeva, Kodrul et A.B.Herman
Plant Fossil Names Registry Number: PFN000356
Act LSID: urn:lsid:plantfossilnames.org:act:356
Reference: Moiseeva, M. G., Kodrul, T. M. & Herman, A. B. (2018): Early Paleogene Boguchan flora of the Amur Region (Russian Far East): Composition, age and palaeoclimatic implications. – Review of Palaeobotany and Palynology 253: 15–36.
Page of description: 32
Illustrations or figures: fig. 5; pl. IV, figs 12, 13
Holotype AB1-142a, b, Geological Institute, Russian Academy of Sciences, Moscow, Russia
Figures: fig. 5B; pl. IV, figs 12, 13
Note: AB1-142b is a counterpart to AB1-142a
Leaves simple, palmately three-lobed, petiolate, leaf size mesophyll, length–width ratio almost 1:1. Lamina elliptical to ovate, symmetrical. Apices of lateral lobes directed upward; apex angle of lobes acute, apex shape straight. Base angle of leaf lamina reflex, base shape cordate. Primary venation basal actinodromous with five basal veins and compound agrophic veins. Major secondary veins (5–6 pairs) curved apically, alternate, craspedodromous or
semicraspedodromous with irregular spacing. Intersecondary veins occasionally present.
Leaf margin serrate or occasionally dentate. Tooth spacing regular with up to three orders of teeth and four to five teeth per cm. Sinus shape angular, tooth shapes typically convex/convex, sometimes flexuous/convex or straight/straight.
Specific epithet indicates the similarity of leaf morphology to that of representatives of the family Betulaceae.
Middle Tsagayan subformation
Arkhara–Boguchan coal field (Zeya–Bureya Depression, Amur River Region)
Plant fossil remain
macro- and meso-fossils-embryophytes except wood
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