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IRMNG name detailsEomicrhystridium G. Deflandre, 1968 †
marine
fossil only
C. r. hebd. Seanc. Acad. Sci., Paris (D) 266:
page(s): 2387 [details]
Taxonomic remark From Sarjeant & Stancliffe, 1994: It was their early occurrence in the geological column, surely, that caused Deflandre to...
Taxonomic remark From Sarjeant & Stancliffe, 1994: It was their early occurrence in the geological column, surely, that caused Deflandre to wish to utilize these forms as basis for a new genus. By his own admission (ibid., p. 2388) there was an overlap in morphology with Archaeohystrichosphaeridium Timofeyev 1959 - a genus shown subsequently to be invalid, since no type species was designated, but later validated by Loeblich Jr. and Tappan 1976, p. 303 - the sole differentiating feature being small size. This produces yet another quandary, as no reasons were given for a separation from Deflandre's own, equally small genus Micrhystridium ... This genus urgently merits revision. Until that is done, its overlap in definition with other existing genera-in particular, Micrhystridium and Polygonium - renders it effectively unuseable. [details]
IRMNG (2021). Eomicrhystridium G. Deflandre, 1968 †. Accessed at: https://irmng.org/aphia.php?p=taxdetails&id=1088010 on 2024-11-16
Date action by 2016-11-22 09:43:47Z changed db_admin
original description
C. r. hebd. Seanc. Acad. Sci., Paris (D) 266:
page(s): 2387 [details] basis of record Neave, S. A. and successors. (1939-2004). Nomenclator Zoologicus, vols. 1-10 online. [developed by uBio, hosted online at MBLWHOI Library]. Previously at http://ubio.org/NomenclatorZoologicus/ (URL no longer current). , available online at https://insecta.bio.spbu.ru/z/nomenclator_zoologicus_PDF.htm [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] status source Sarjeant, W. A. S.; Stancliffe, R. P. W. (1994). The Micrhystridium and Veryhachium complexes (Acritarcha: Acanthomorphitae and Polygonomorphitae): a taxonomic reconsideration. <em>Micropaleontology.</em> 40(1): 1-77., available online at https://doi.org/10.2307/1485800 [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 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] habitat flag source as per family (almost all marine) [details] Unreviewed
Descriptive info Precambrian (Huronian). (Index Nominum Genericorum) [details]Taxonomic remark From Sarjeant & Stancliffe, 1994: It was their early occurrence in the geological column, surely, that caused Deflandre to wish to utilize these forms as basis for a new genus. By his own admission (ibid., p. 2388) there was an overlap in morphology with Archaeohystrichosphaeridium Timofeyev 1959 - a genus shown subsequently to be invalid, since no type species was designated, but later validated by Loeblich Jr. and Tappan 1976, p. 303 - the sole differentiating feature being small size. This produces yet another quandary, as no reasons were given for a separation from Deflandre's own, equally small genus Micrhystridium ... This genus urgently merits revision. Until that is done, its overlap in definition with other existing genera-in particular, Micrhystridium and Polygonium - renders it effectively unuseable. [details] |
