Dadoxylon cf. rollei Unger, 1859

Galtier, Jean, Ronchi, Ausonio & Broutin, Jean, 2011, Early Permian silicified floras from the Perdasdefogu Basin (SE Sardinia): comparison and bio-chronostratigraphic correlation with the floras of the Autun Basin (Massif central, France), Geodiversitas 33 (1), pp. 43-69 : 63

publication ID

https://doi.org/ 10.5252/g2011n1a4

DOI

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
status

 

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.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Pinopsida

Order

Pinales

Family

Araucariaceae

Genus

Dadoxylon

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