2026-10-11T10:32:59Z https://www.scidb.cn/oai

10.57760/sciencedb.40860 2026-06-26T16:20:00Z

2026-06-26 A new species of Alangioxylon from the Cuddalore Sandstone formation, Tamil Nadu, India, and its palaeoecology and palaeoclimate implications. doi:10.57760/sciencedb.40860 en  Growth ring boundaries indistinct, Wood diffuse-porous, Vessels in radial multiples of 3-5 (4), 12-17 vessels per mm2(average 15 per mm2), round to oval; Tangential diameter r.d 97-141μm (average 112 μm), t.d 88-128 μm (average 102 μm)(Figure 3, A); Vessel element 950-1210 μm (average 1069 μm). Scalariform perforation plate, with 10-14 bars r.d 9-14 μm (average 11 μm)(Figure 3, E), Intervascular pits alternate, Oval to Elliptical shape, r.d 4-7 μm (5 μm), t.d 10-16 μm (10 μm)(Figure 3, F, G), tyloses present. Axial parenchyma diffuse, diffuse in aggregates of 1-6 cells, with short uniseriate lines (Figure 3, A, B). Rays exclusively multiseriate, 5-7 rays per tangential mm. commonly 1-2 mm high; 5-9 seriate; 110-169 μm wide (Figure 3, C). Rays are weakly heterocellular with 1 or 2 rows of square marginal cells. Fibre thin-walled, non-septate, r.d 12-21 μm (average 17 μm)- t.d 20-35 μm (average 26 μm) wide (Figure 3, D). Alangioxylon; Cuddalore Sandstone Formation; Tertiary; fossil wood; Alangiaceae. perumal N Saravanakumar Kumarasamy PUBLIC https://opendatacommons.org/licenses/pddl/1-0/ dataset Science Data Bank