Wingia

Name

Wingia

Rank

Genus

Authors (Pub.)

Wang H.-S. Dilcher D. L.  

Publication

Early Cretaceous angiosperm leaves from the Dakota Formation, Hoisington III locality, Kansas, USA [2018/9]

Journal

Palaeontologia Electronica

Issue

21.3.34A

Page number

34

Year

2018

Parent Taxon

[Class] Magnoliopsida

Fossil Status

leaves

Type

Wingia expansoloba

Diagnosis

Leaf simple, irregularly fivelobed; lamina margin with glandular teeth at or near apex of lobes, strongly reinforced; sinus rounded, bracing accomplished by two secondary veins originated from adjacent primary veins; serrations minute, simple, typically three veins entering a tooth, medial vein originating from exmedial side of secondary vein, basal vein tertiary in order and running very close to the margin before entering the tooth, vein of apical side not well developed. Petiole long and thin, enlarged both distally and proximally (perhaps these are pulvini). Primary venation basal actinodromous; primary vein stout to massive, multi-stranded; medial primary vein straight in course; inner lateral primary veins apically curved; outer primary veins apically curved or recurved. Secondary venation predominately brochidodromous or semicraspedodromous when margin is toothed near apex; secondary veins thin relative to primary veins; originating from primary veins at wide acute to angle, straight or slightly curved and then abruptly curved very close to the margin to join superadjacent secondary veins to form rectangular or rhomboidal intercostal regions; Intersecondary veins common, composite. Tertiary veins orthogonal reticulate, forming predominately quadrangular meshes.