Zelkovoxylon yesimae Akkemik et I.Poole in Akkemik

Plant Fossil Names Registry Number: PFN000362

Act LSID: urn:lsid:plantfossilnames.org:act:362

Authors: Ü. Akkemik & I. Poole

Rank: species

Reference: Akkemik, Ü. (2019): Validation of four new plant fossil names from Turkey. – Fossil Imprint 75(2): 289–291.

Page of description: 290

Illustrations or figures: Tet-fig. 1c


Holotype HAY02, Department of Forest Botany, Faculty of Forestry, Istanbul University-Cerrahpasa, Istanbul, Turkey
Figures: Text-fig. 1c

Note: Holotype figured also in Akkemik et al. (2018: Rev. Palaeobot. Palynol., 254: pls IV, V).

Original diagnosis/description

Wood of the new species is ring porous; earlywood vessels wider and in 2–3 rows; solitary or up to 4 vessels in radial multiples; latewood pores are
narrow, generally in clusters and diagonal bands. Rays are heterocellular, body ray cells procumbent with one or two rows of upright cells, and ray width 1–2 seriate. Prismatic crystals common in the axial parenchyma cells (Akkemik et al. 2018).


The epithet yesimae originates from the name Yeşim. It is used in honor of Yeşim Akkemik, as she has been one of the most patient persons in my very hard scientific life.


Neogene, Miocene
Earliest Miocene


Near the village of Çayraz in the Haymana Basin (Ankara) at 32° 33′ 49″ E longitude and 39° 28′ 46″ N latitude

Plant fossil remain

fossil wood



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