Craspedodromophyllum acutum P.R.Crane
Plant Fossil Names Registry Number: PFN002651
Act LSID: urn:lsid:plantfossilnames.org:act:2651
Author: P. R. Crane
Genus: Craspedodromophyllum P.R.Crane
Reference: Crane, P. R. (1981): Betulaceous leaves and fruits from the British Upper Palaeocene. – Botanical Journal of the Linnean Society 83(2): 103–136.
Page of description: 107
Illustrations or figures: figs 2–12
Name is type taxon for
Holotype V.59801a, Natural History Museum, London, United Kingdom
Figures: figs 2B, 3A, C, 6, 12
Note: Paratypes: V.59792–V.59800, V.59802–59815, housed in Department of Palaeontology, Natural History Museum, London, United Kingdom.
Leaves elliptic to narrowly elliptic, 40–150 mm long and 10–50 mm wide. Base acute, apex attenuate. Petiole proximally dilated, up to 26 mm in length. Secondary veins arising from the midrib alternately in 12–16 pairs, rarely opposite. Angle of divergence 15–(25–35)–60 degrees. Distance between secondary veins measured at the midrib 1–(4–11)–17 mm decreasing apically. Origin of lowermost secondary vein supra-basal. Basal veins, thin, of tertiary order, occasionally proximally contiguous with the margin. Tertiary venation percurrent, alternate, rarely opposite; straight to slightly convex, branched and unbranched. Mid-vein, tertiary angle 85–(95–110)–120 degrees. Quarternary venation orthogonal forming irregular polygonal areolae.
From the acute apex and base.
Upper Palaeocene, Reading Beds, approximately 10 m above the chalk.
Cold Ash Quarry, (SU501713) Newbury, Berkshire, England
Plant fossil remain
macro- and meso-fossils-embryophytes except wood