Eucalyptoxylon cuddalorensis N.Awasthi, R.C.Mehrotra et Anum.Shukla
Plant Fossil Names Registry Number: PFN000266
Act LSID: urn:lsid:plantfossilnames.org:act:266
Reference: Awasthi, N., Mehrotra, R. C. & Shukla, A. (2018): Some new fossil woods from the Cuddalore Sandstone of south India. – The Palaeobotanist 67(1): 33–46.
Page of description: 40
Illustrations or figures: pl. 5.1–5
Holotype 41591, Birbal Sahni Institute of Palaeosciences, Lucknow, India
Figures: pl. 5.1–5
Wood diffuse–porous. Growth rings absent. Vessels mostly small to sometimes very small in size, tangential diameter range 35–77 μm, mean 58 μm, almost exclusively solitary, rarely in radial pairs, evenly distributed, 25–35 per sq mm, usually round to oval, tylosed; vessel members range 65–270 μm, mean 158 μm, with transverse to oblique ends; perforations simple; vasicentric tracheids present forming a thin sheath around most of the vessels, tracheidal pits in 1 or 2 rows and 3 to 4 μm in size. Axial parenchyma both paratracheal and apotracheal, paratracheal scanty and intermingled with tracheids, apotracheal diffuse to diffuse–in–aggregate; parenchyma cells thin–walled, 39–107 μm in length and 11–19 μm in width; crystals present in parenchyma cells. Rays closely spaced, 16–22 per mm, 1–2 seriate, heterocellular, made up of procumbent cells in the middle portion with 1–2 rows of upright cells at the end of the rays; ray cells 11–14 μm in tangential height. Fibres thick–walled and non–septate.
Cuddalore Sandstone Formation, Late Miocene–Pliocene
Murattandichavadi near Puducherry, Villupuram District, Tamil Nadu
Plant fossil remain