Petrostroma Döderlein, 1892
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publication ID |
https://doi.org/ 10.5281/zenodo.5392175 |
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persistent identifier |
https://treatment.plazi.org/id/B2494E1B-FF8C-B27E-F4F2-FAA5FC5DA195 |
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treatment provided by |
Marcus |
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scientific name |
Petrostroma Döderlein, 1892 |
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Genus Petrostroma Döderlein, 1892 View in CoL
TYPE SPECIES. — Petrostroma schulzei Döderlein, 1892 by monotypy.
DIAGNOSIS.— Minchinellidae with tetractines fused by their basal actines forming radial lines that are linked by smaller tetractines, which are fused by their basal actines. The cortical skeleton consists of free spicules.
DESCRIPTION
The genus Petrostroma has not been found since it was originally described by Döderlein (1892)
and then redescribed again by Döderlein (1898). It is difficult to distinguish this genus from Plectroninia . The existence of ascending radial lines in the main framework of large tetractines of the single known species may be a function of its massive shape as compared with encrusting Recent Plectroninia . Although these may represent different growth forms, we continue to separate the two genera, pending a revision that includes the fossil Minchinellidae . For illustration, see Döderlein 1898.
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.