Ulmoxylon kasapligilii Akkemik

Plant Fossil Names Registry Number: PFN002217

Act LSID: urn:lsid:plantfossilnames.org:act:2217

Author: Ü. Akkemik

Rank: species

Reference: Akkemik, Ü. (2021): A re-examination of the angiosperm wood record from the early and middle Miocene of Turkey, and new species descriptions. – Acta Palaeobotanica 61(1): 42–94.

Page of description: 81

Illustrations or figures: pls 19, 20

Types

Original diagnosis/description

Growth ring boundaries distinct. Wood ring-porous with 2–3 rows of vessels in earlywood. Earlywood vessels solitary or in radial multiples; latewood vessels arranged in tangential bands. Mean vessel tangential diameter 100–200 μm, ≥200 μm in earlywood, ≤50 μm in latewood. Axial parenchyma diffuse, vasicentric, banded, confluent (Pl. 19A, B). Rays in two distinct sizes, generally larger rays 4–8-seriate, rarely 1–2-seriate rays present. Ray width up to 8 cells, height up to 61 cells (Pl. 19C). Storied structure common in axial parenchyma (Pls 19D, 20A). Intervessel pits alternate, perforation plates simple (Pl. 20B). All rays procumbent, body ray cells procumbent with one row of upright and/or square marginal cells (Pl. 20C, D). Helical thickening common in latewood vessels (Pl. 20D).

Etymology

The epithet “kasapligilii” honours the late Prof. Dr. Baki Kasaplıgil, one of the pioneers of palaeobotany in Turkey.

Stratigraphy

Neogene, Miocene
Hançili Formation, early Miocene

Locality

Turkey
Kozyaka village, Seben city, Bolu Province