Dadoxylon cf. rollei Unger, 1859
publication ID |
https://doi.org/ 10.5252/g2011n1a4 |
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https://doi.org/10.5281/zenodo.4607923 |
persistent identifier |
https://treatment.plazi.org/id/5328C915-CD7A-0D05-B4BB-0029AFCBB775 |
treatment provided by |
Felipe |
scientific name |
Dadoxylon cf. rollei Unger, 1859 |
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Dadoxylon cf. rollei Unger, 1859
( Fig. 10 View FIG A-D)
A rather large specimen consists of a single fragment of distorted wood ( Fig. 9A View FIG ); however characteristic features are preserved: the files of secondary xylem tracheids (30-50 µm in diameter) are separated by narrow (uniseriate) rays of variable height (2 to 20 cells) ( Fig. 9B, D View FIG ); pitting, restricted to radial walls, shows uni- to biseriate rows of crowded circular bordered pits ( Fig. 9C View FIG ). This anatomy is similar to that of woody trunks of Dadoxylon rollei Unger from the Lower Permian of Germany and from Autun. Marguerier (1971), who investigated trunks from Autun, consider that characteristics of tracheid pittings of such woods suggest affinities with walchian conifers rather than with cordaites.
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.
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