Parataxospermum, Z.M.Li, 1993
publication ID |
https://doi.org/ 10.5252/g2011n1a4 |
DOI |
https://doi.org/10.5281/zenodo.4607921 |
persistent identifier |
https://treatment.plazi.org/id/5328C915-CD7D-0D05-B74D-0470AC17B10F |
treatment provided by |
Felipe |
scientific name |
Parataxospermum |
status |
|
cf. Parataxospermum ( Fig. 9I View FIG )
Dispersed cardiocarpalean ovules of this type are the most common, occurring in about 1/10 of specimens.
They are up to 1 mm long and 6 × 5 mm wide. They are characterized by a prominent sclerotesta up to 1 mm thick composed of large thick-walled cells 50 to 200 µm in diameter gradually decreasing in size in the outermost sclerotesta and near the base of the ovule. Detailed description of these ovules will be presented in another paper but it is worth mentioning that they are most similar with ovules from Carboniferous-Permian coal balls from Shanxi Province in China described by Li (1993).
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