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IRMNG name detailsSpiroxylon J. Walton, 1925 †
1352929 (urn:lsid:irmng.org:taxname:1352929)
unaccepted > junior homonym
Genus
fossil only
Not documented
Taxonomic remark A homotypic synonym of Prototaxoxylon R. Kräusel & E. Dolianiti 1958 according to Index Nominum Genericorum. Philippe &...
Taxonomic remark A homotypic synonym of Prototaxoxylon R. Kräusel & E. Dolianiti 1958 according to Index Nominum Genericorum. Philippe & Bamford, 2008 state: This generic name [Prototaxoxylon R. Kräusel & E. Dolianiti, 1958] rests on a type species, P. africanum, with Spiroxylon africanum Walton as a basionym, the age of which is unknown (Walton, 1925: 22). The genus original diagnosis clearly states that radial pits cannot be rounded and isolated. Thus only wood with strictly araucarian radial pitting should be assigned there. Prototaxoxylon Kräusel et Dolianiti is a junior nomenclatural synonym of Spiroxylon Walton non Hartig, as Walton clearly described Spiroxylon as a nov. gen. and was unaware of the existence of Spiroxylon Hartig. The type species of Spiroxylon Hartig is based on poorly preserved material (Kräusel and Dolianiti, 1958), but these authors should have made a neotypification rather than to propose a new name. The use of Prototaxoxylon is now well established, however, and this generic name should be proposed for conservation. [details]
IRMNG (2022). Spiroxylon J. Walton, 1925 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1352929 on 2025-03-31
Date action by
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 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] 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 [details] Unreviewed
Descriptive info Wood; Harmsfontein (?), South Africa. (Index Nominum Genericorum) [details]Taxonomic remark A homotypic synonym of Prototaxoxylon R. Kräusel & E. Dolianiti 1958 according to Index Nominum Genericorum. Philippe & Bamford, 2008 state: This generic name [Prototaxoxylon R. Kräusel & E. Dolianiti, 1958] rests on a type species, P. africanum, with Spiroxylon africanum Walton as a basionym, the age of which is unknown (Walton, 1925: 22). The genus original diagnosis clearly states that radial pits cannot be rounded and isolated. Thus only wood with strictly araucarian radial pitting should be assigned there. Prototaxoxylon Kräusel et Dolianiti is a junior nomenclatural synonym of Spiroxylon Walton non Hartig, as Walton clearly described Spiroxylon as a nov. gen. and was unaware of the existence of Spiroxylon Hartig. The type species of Spiroxylon Hartig is based on poorly preserved material (Kräusel and Dolianiti, 1958), but these authors should have made a neotypification rather than to propose a new name. The use of Prototaxoxylon is now well established, however, and this generic name should be proposed for conservation. [details] |
