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Taxodioxylon megalonissum
Taxodioxylon megalonissum Süss, E. Velitzelos Feddes Repert., 108(1-2): 12. Mar 1997
- Name
- Taxodioxylon megalonissum
- Rank
- Species
- Generic Name
- [Genus] Taxodioxylon
- Authors (Pub.)
- Süss H.
Velitzelos E.
- Publication
- Fossile Hölzer der Familie Taxodiaceae aus tertiären Schichten des Versteinerten Waldes von Lesbos, Griechenland [1997/3]
- Journal
- Feddes Repertorium
- Volume
- 108
- Issue
- 1-2
- Page number
- 12
- Year
- 1997
- Fossil Status
- stems (wood)
- Stratigraphy
- Miocene
- Location
- Megalonissi, Lesbos Island, Greece
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Athens University, Athens, Greece
- Repository Number
- Verkieseltes Holzfossil Lesbos 128 with 3 slides
- Diagnosis
- Secondary xylem with a wood structure of stem:
growth layers distinct with an abrupt transition
from early to late wood. late wood zone composed
only of 2-5 layers of cells; constant diameter
of tracheids from first to last early wood,
tracheids with 1-2 bordered pits on radial walls.
arranged oppositely if two rows, crassulae rarely
and feebly developed; spiral thickenings in the
tracheids and resin canals absent; wood parenchyma
sparse with smooth horizontal cell walls.
rays uniseriate, in late wood slightly widened,
1-6 cells high, cells of variable size and shape,
in the cross-field 2-5 large taxodioide pits, horizontal
axis 16-18 m, if five pits in the crossfield,
than arranged as the five points of a dice,
horizontal and vertical walls of rays smooth
(abietineous pitting absent).
