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IRMNG taxon detailsCalcisphaera W.C. Williamson, 1880 †
1373714 (urn:lsid:irmng.org:taxname:1373714)
accepted
Genus
Calcisphaera J.W. Dawson, 1881 † · unaccepted (later usage incorrectly cited as...)
later usage incorrectly cited as a new name
fossil only
Williamson, W. C. (1880). On the organization of the fossil plants of the coal-measures.—Part X. Including an examination of the supposed radiolarians of the carboniferous rocks. <em>Philosophical transactions of the Royal Society of London.</em> 171(2): 493-539., available online at https://royalsocietypublishing.org/doi/epdf/10.1098/rstl.1880.0014 [details]
Taxonomic remark AlgaeBase, 2021 states: "Also classified (erroneously) as a foraminifera. While the type species [C. robusta] is definitely...
Taxonomic remark AlgaeBase, 2021 states: "Also classified (erroneously) as a foraminifera. While the type species [C. robusta] is definitely a charophyte gyrogonite, the other species described by Williamson (which are calcified vesicles of various origins) and subsequent authors can be related to "radiolarians, sponges, acritarchs, possible foraminifers, charophytes and green algae" (Kaneva & al. 2013)." Type species previously given as C. laevis e.g. in Andrews, 1955; Peck & Morales, 1966; Grambast-Fessard, Feist & Wang, 1989 (Taxon, 38(4): 641-643) and genus therefore classified as Calcitarcha in Versteegh et al., 2009, however this is based on an obsolete version of the botanical Code; current versions recognise the type species fixation (of C. robusta) by Miller, 1889 as valid, thus placing this genus as a charophyte. However Vachard et al., 2012 continue to use Calcisphaera as a valid genus in Calcitarcha. [details]
IRMNG (2025). Calcisphaera W.C. Williamson, 1880 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1373714 on 2025-09-11
Date action by
original description
Williamson, W. C. (1880). On the organization of the fossil plants of the coal-measures.—Part X. Including an examination of the supposed radiolarians of the carboniferous rocks. <em>Philosophical transactions of the Royal Society of London.</em> 171(2): 493-539., available online at https://royalsocietypublishing.org/doi/epdf/10.1098/rstl.1880.0014 [details]
basis of record Farr, E. R.; Zijlstra, G. (eds). (1996-current). Index Nominum Genericorum (ING). A compilation of generic names published for organisms covered by the ICN: International Code of Nomenclature for Algae, Fungi, and Plants. [previously: organisms covered by the International Code for Botanical Nomenclature] (2007 version). , available online at https://naturalhistory2.si.edu/botany/ing/ [details] additional source Versteegh, G. J. M.; Servais, T.; Streng, M.; Munnecke, A.; Vachard, D. (2009). A discussion and proposal concerning the use of the term Calcispheres. <em>Palaeontology.</em> 52(2): 343-348., available online at https://doi.org/10.1111/j.1475-4983.2009.00854.x note: as Calcitarcha, however that assignment is only applicable to species other than the type. C. robusta, refer note [details] additional source Vachard, D.; Krainer, K.; Lucas, S. G. (2012). Pennsylvanian (Late Carboniferous) calcareous microfossils from Cedro Peak (New Mexico, USA). Part 1: Algae and Microproblematica. <em>Annales de Paléontologie.</em> 98(4): 225-252., available online at https://doi.org/10.1016/j.annpal.2012.06.003 note: alternative taxonomic treatment, refer note [details] additional source Miller, S. A. (1889). North American Geology and Palaeontology for the use of Amateurs, Students and Scientists. <em>Western Methodist Book Concern. Cincinnati.</em> 664 p., available online at https://www.biodiversitylibrary.org/item/229500 note: type species fixation (C. robusta), p. 155 [details] additional source Kaneva, N. A.; Ponomarenko, E. S.; Shevchuk, S. S. (2013). The problem of genetic interpretation of problematic Calcisphaera incertae sedis (for example of Upper Devonian deposits of the Timan-Pechora region) [in Russian]. <em>Bulletin of Institute of Geology, Komi Scientific Center, Ural Branch of the Russian Academy of Sciences.</em> 12: 15-19. [details] verified source for family Guiry, M. D.; Guiry, G. M. AlgaeBase (2021 version). , available online at https://www.algaebase.org/ [details] name verified source Farr, E. R.; Zijlstra, G. (eds). (1996-current). Index Nominum Genericorum (ING). A compilation of generic names published for organisms covered by the ICN: International Code of Nomenclature for Algae, Fungi, and Plants. [previously: organisms covered by the International Code for Botanical Nomenclature] (2007 version). , available online at https://naturalhistory2.si.edu/botany/ing/ [details] extant flag source Versteegh, G. J. M.; Servais, T.; Streng, M.; Munnecke, A.; Vachard, D. (2009). A discussion and proposal concerning the use of the term Calcispheres. <em>Palaeontology.</em> 52(2): 343-348., available online at https://doi.org/10.1111/j.1475-4983.2009.00854.x [details] habitat flag source as per family [details] original description (of Calcisphaera J.W. Dawson, 1881 †) Dawson, J. W. (1881). Palaeontological notes. I. A new species of Piloceras. II. 2. Saccamina? (Calcisphaera) Eriana (an Erian rhizopod of uncertain affinities). III. New Devonian plants from the Bay de Chaleur. <em>The Canadian Naturalist and Quarterly Journal of Science, new series.</em> 10: 1-11., available online at https://www.biodiversitylibrary.org/page/7312375 page(s): 5 [details] Unreviewed
Descriptive info Middle Devonian; U.S.A. (Erie County, Ohio). (Index Nominum Genericorum) [details]Taxonomic remark AlgaeBase, 2021 states: "Also classified (erroneously) as a foraminifera. While the type species [C. robusta] is definitely a charophyte gyrogonite, the other species described by Williamson (which are calcified vesicles of various origins) and subsequent authors can be related to "radiolarians, sponges, acritarchs, possible foraminifers, charophytes and green algae" (Kaneva & al. 2013)." Type species previously given as C. laevis e.g. in Andrews, 1955; Peck & Morales, 1966; Grambast-Fessard, Feist & Wang, 1989 (Taxon, 38(4): 641-643) and genus therefore classified as Calcitarcha in Versteegh et al., 2009, however this is based on an obsolete version of the botanical Code; current versions recognise the type species fixation (of C. robusta) by Miller, 1889 as valid, thus placing this genus as a charophyte. However Vachard et al., 2012 continue to use Calcisphaera as a valid genus in Calcitarcha. [details] |
