Ostryoxylon gokceadaense

Name

Ostryoxylon gokceadaense

Rank

Species

Generic Name

[Genus] Ostryoxylon

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

52

Year

2021

Fossil Status

stems (wood)

Stratigraphy

Serravallian

Strat. comment

Kesmekaya Volcanics

Location

East of Eşelek village – Gökçeada, near coastline, Island of Imbros, Gökçeada District, Çanakkale Province, Turkey

Paleoregion

Eurasia (Europe)

Data for Holotypus

Repository

ISTO Herbarium, Faculty of Forestry, Istanbul University-Cerrahpaşa, Istanbul, Turkey

Repository Number

Three thin sections of specimen GOK02

Num

Pl. 4A–H

Descr.

holotype not specified among illustrations

Pub.

A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions [2021/6]

Diagnosis

Growth ring boundaries distinct with 1–2 rows of marginal fibre cells. Wood diffuse-porous, and vessels arranged in radial multiples of 2–4 or more (up to 13 vessels). Mean tangential diameter of vessel lumina less than 50 µm. Vessel frequency 50–100 per mm2. Helical thickening on vessels very com mon. Axial parenchyma present and diffuse. Ray width 1–4-seriate, aggregate rays not observed. Rays per mm per mm2 ≥12. Maximum ray height up to 71 cells. Intervessel pits mostly alternate and opposite, circular in shape. Perforation plates simple. Rays heterocellular; body ray cells procumbent with mostly 1–4 rows of upright and/or square marginal cells.