Back
Fraxinoxylon beypazariense
Fraxinoxylon beypazariense Akkemik Acta Palaeobot., 61(1): 64. 30 Jun 2021
- Name
- Fraxinoxylon beypazariense
- Rank
- Species
- Generic Name
- [Genus] Fraxinoxylon
- Authors (Pub.)
- Akkemik Ü.
- Publication
- A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions [2021/6]
- Journal
- Acta Palaeobotanica
- Volume
- 61
- Issue
- 1
- Page number
- 64
- Year
- 2021
- Fossil Status
- stems (wood)
- Stratigraphy
- Burdigalian
- Location
- near Aşağıgüney village, Beypazarı, Ankara, Türkiye
- Paleoregion
- Eurasia (Anatolia)
Data for Holotypus
- Repository
- ISTO Herbarium, Faculty of Forestry, Istanbul University-Cerrahpaşa, Istanbul, Turkey
- Repository Number
- Three thin sections of specimen AGU13
- Diagnosis
- Growth ring boundaries distinct, wood ring-porous. Earlywood vessels wide,
tyloses common. Vessels in latewood narrower. Vessels solitary and in radial multiples of up to three vessels in earlywood, vessel clusters common in latewood. Earlywood vessels sometimes in dendritic pattern. Tangential and radial diameter of vessel lumina 69 (26–116) µm and 90 (33–130) µm in early wood, 27 (13–46) 50 µm and 24 (11–52) µm in latewood. Vessel density 83 (67–104) per mm2, with 26 (23–32) vessels per mm2 in earlywood and 57 (44–72) vessels per mm2 in latewood. Paratracheal
axial parenchyma almost lozenge-aliform, especially in latewood. 1–4 rows of marginal banded axial parenchyma present. Rays 1–2 (–3)-seriate, ≥12 per mm. Ray height 8–25 (–52) cells (Pls 10C, 11A). Intervessel pits alternate, small (4–7 µm), sometimes scalariform. Axial parenchyma
in longitudinal section common, fibres thin- to thick-walled. Perforation plates
simple (Pl. 11C). Rays mainly heterocellular, body ray cells procumbent with 1–4 rows of upright and square marginal cells, sometimes homocellular with only procumbent body ray cells.
