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IRMNG taxon detailsBrachypleganon S.C. Lo, 1980 †
marine,
fossil only
Not documented
Taxonomic remark From Butterfield et al., 1994: Small, rod-shaped Proterozoic microfossils have been assigned to Eosynechococcus Hofmann,...
Taxonomic remark From Butterfield et al., 1994: Small, rod-shaped Proterozoic microfossils have been assigned to Eosynechococcus Hofmann, 1976, Archaeoellipsoides Horodyski & Donaldson, 1980, Brachypleganon Lo, 1980, and Bactrophycus Zhang, 1985. On the basis of an apparently continuous morphological gradient Golovenoc & Belova (1984) subsumed Archaeoellipsoides into Eosynechococcus and erected a number of new species such that the taxon now includes forms with an aspect ratio as high as 3.6: 1 (see Eosynechococcus, above). By contrast, Brachypleganon has a length-to-width ratio of ca. 7: 1. (The 4.0-15:1 aspect of Bactrophycus suggests that it may be a junior synonym of Brachypleganon.) [details]
IRMNG (2024). Brachypleganon S.C. Lo, 1980 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=11939458 on 2024-10-19
Date action by
basis of record
Sergeev, V. N.; Sharma, M.; Shukla, Y. (2012). Proterozoic fossil Cyanobacteria. <em>The Palaeobotanist.</em> 61: 189-358., available online at https://doi.org/10.54991/jop.2012.359 [details]
additional source Butterfield, N. J.; Knoll, A. H.; Swett, K. (1994). Paleobiology of the Neoproterozoic Svanbergfjellet Formation, Spitsbergen. <em>Fossils and Strata.</em> 34: 1-84., available online at https://doi.org/10.18261/8200376494-1994 note: refer note [details] verified source for family Sergeev, V. N.; Sharma, M.; Shukla, Y. (2012). Proterozoic fossil Cyanobacteria. <em>The Palaeobotanist.</em> 61: 189-358., available online at https://doi.org/10.54991/jop.2012.359 [details] name verified source Sergeev, V. N.; Sharma, M.; Shukla, Y. (2012). Proterozoic fossil Cyanobacteria. <em>The Palaeobotanist.</em> 61: 189-358., available online at https://doi.org/10.54991/jop.2012.359 [details] current name source Sergeev, V. N.; Sharma, M.; Shukla, Y. (2012). Proterozoic fossil Cyanobacteria. <em>The Palaeobotanist.</em> 61: 189-358., available online at https://doi.org/10.54991/jop.2012.359 [details] extant flag source Sergeev, V. N.; Sharma, M.; Shukla, Y. (2012). Proterozoic fossil Cyanobacteria. <em>The Palaeobotanist.</em> 61: 189-358., available online at https://doi.org/10.54991/jop.2012.359 [details] habitat flag source Sergeev, V. N.; Sharma, M.; Shukla, Y. (2012). Proterozoic fossil Cyanobacteria. <em>The Palaeobotanist.</em> 61: 189-358., available online at https://doi.org/10.54991/jop.2012.359 [details] Unreviewed
Taxonomic remark From Butterfield et al., 1994: Small, rod-shaped Proterozoic microfossils have been assigned to Eosynechococcus Hofmann, 1976, Archaeoellipsoides Horodyski & Donaldson, 1980, Brachypleganon Lo, 1980, and Bactrophycus Zhang, 1985. On the basis of an apparently continuous morphological gradient Golovenoc & Belova (1984) subsumed Archaeoellipsoides into Eosynechococcus and erected a number of new species such that the taxon now includes forms with an aspect ratio as high as 3.6: 1 (see Eosynechococcus, above). By contrast, Brachypleganon has a length-to-width ratio of ca. 7: 1. (The 4.0-15:1 aspect of Bactrophycus suggests that it may be a junior synonym of Brachypleganon.) [details]
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