Lesbosoxylon kemaliyensis Akkemik & Mantzouka, 2020
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publication ID |
https://doi.org/ 10.5252/geodiversitas2020v42a23 |
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publication LSID |
urn:lsid:zoobank.org:pub:54A81360-9A19-456B-AF72-E4868A4835BA |
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DOI |
https://doi.org/10.5281/zenodo.4488612 |
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persistent identifier |
https://treatment.plazi.org/id/03A987CE-FFF8-0208-83AC-FC05FABDFC91 |
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treatment provided by |
Felipe |
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scientific name |
Lesbosoxylon kemaliyensis Akkemik & Mantzouka |
| status |
sp. nov. |
Lesbosoxylon kemaliyensis Akkemik & Mantzouka , sp. nov. ( Figs 3-6 View FIG View FIG View FIG View FIG )
Plant Fossil Names Registry Number: PFN001780
HOLOTYPE. — Specimen KEM01 View Materials ; repository: Istanbul University-Cerrahpasa, Faculty of Forestry, Department of Forest Botany (designated here).
ETYMOLOGY. — The epithet “ kemaliyensis ” comes from the name of the main city “Kemaliye” nearby the fossil site.
TYPE HORIZON. — Divriği Formation.
AGE. — Early-middle Miocene.
TYPE LOCALITY. — Kemaliye (Eğin), Erzincan, Turkey.
DIAGNOSIS. — Coniferous wood with resin canals. Growth ring boundaries distinct, transition from earlywood to latewood mostly gradual, axial and radial resin canals with thin-walled epithelial cells, latewood tracheids thin to thick walled, bordered pits on radial walls of tracheids 1-2(-3) seriate, crassulae common, rays heterocellular, uniseriate, partly biseriate, uniseriate rays up to 27 cells high, fusiform rays up to 30 seriate high. Axial parenchyma occasionally present. Ray tracheids 2-3 rows, cell walls of ray tracheids smooth. Cross-field pitting pinoid, 1-2(-6) pits per cross-field, horizontal and end walls of ray parenchyma cells smooth and slightly nodular, horizontal walls occasionally pitted, indentures not observed.
DESCRIPTION
The petrified wood sample has grey color; dimensions are 7 × 8 × 19 cm ( Fig.3 View FIG ). In cross section,growth ring boundaries are distinct, transition from earlywood to latewood is mostly gradual ( Fig.4A, B View FIG ). Measured diameters of tracheids and pits are given inTable 1. Axial resin canals with thin walled epithelial cells present mostly in latewood zone ( Fig. 4A, B View FIG ). Traumatic resin canals present ( Fig. 4C View FIG ). In tangential section, rays uniseriate ( Fig.4D View FIG ), and fusiform rays present ( Fig. 4E View FIG ). Rays occasionally biseri-ate or partly biseriate ( Fig. 5A View FIG ). Big rays with idioblast-like cells present ( Fig 5 View FIG B-D). Ray cells uniform in some rays, and heterocellular, wider or narrower ( Fig. 5 View FIG D-E). Height of uniseriate rays up to 27 cells ( Fig. 4C View FIG ), height of fusiform rays up to 30 cells and wider ( Fig. 4D View FIG and Fig. 5D View FIG ). Average height of rays 4-15 cells. Radial resin canals with thin–walled epithelial cells. Axial parenchyma cells occasionally present, and generally smooth transverse end walls ( Fig. 5 View FIG F-G and I), and slightly nodular ( Fig. 5H View FIG ). Axial resin canal visible in radial section ( Fig. 6A View FIG ). Tracheid pitting in radial walls of earlywood 1-2 (-3) seriate opposite and crassulae formation common ( Fig. 5 View FIG B-D). Cross-field pitting pinoid in 1(-2) rows of usually 1-2(-6) pits per cross-field ( Fig. 6E, F View FIG ). End walls of ray parenchyma cells smooth, no indentures observed. Rays heterocellular. Ray tracheids present, 1-3 seriate, smooth walled ( Fig. 6G View FIG ). Ray cells smooth walled ( Fig. 6 View FIG E-H) and occasionally pitted. These descriptive features are also provided in Appendix A based on “Criteria used according the IAWA for fossil conifers” by Wheeler et al. (2004).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.