| 词条 | Gymnocodium |
| 释义 |
| fossil_range = Permian | taxon = Gymnocodium | authority =Pia, 1920 | type_species=Gyroporella bellerophontis | type_species_authority= Rothpletz, 1894 }} Gymnocoidum is a genus of calcareous alga known from Permian strata.[1] For details of its classification, see Gymnocodiaceae. References1. ^{{Cite journal | last1 = Elliott | first1 = G. F. | title = The Permian Calcareous Alga Gymnocodium| journal = Micropaleontology | volume = 1 | doi = 10.2307/1484413 | pages = 83–90 | year = 1955 | pmid = | pmc = | jstor = 1484413 }} }}{{Taxonbar|from=Q5624642}}{{red algae-stub}} 3 : Red algae incertae sedis|Fossil algae|Red algae genera |
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