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IRMNG taxon detailsFrasnacritetrus P. Taugourdeau, 1968 †
fossil only
Not documented
Taxonomic remark As Acritarcha in Index Nominum Genericorum; presently treated as Sporae dispersae (as fossil fungal spores) in IRMNG. From...
Taxonomic remark As Acritarcha in Index Nominum Genericorum; presently treated as Sporae dispersae (as fossil fungal spores) in IRMNG. From Saxena et al., 2021: Taugourdeau (1968) stated that this single specimen does not resemble any microfossil already described. He also did not rule out possibility of contamination. He speculated possibility of this specimen being either a broken Diacrodian or half an organism of some Conjugales (Desmidiales) or linear colony such as certain Desmochitina or hydrozoans. But he rejected all the above possibilities and could not reach to any conclusion. Saxena & Sarkar (1986) emended the generic diagnosis, to allow inclusion of a number of fungal conidia that show a general similarity to the morphology of Tetraploa. This fungus generally grows on Poaceae, and the fossil species occur in association with grass pollen. Saxena & Sarkar (1986) adduced this to support their suggestion that Frasnacritetrus should not be considered an acritarch but a fossil genus with affinity to Tetraploa. [details]
IRMNG (2022). Frasnacritetrus P. Taugourdeau, 1968 †. Accessed at: https://irmng.org/aphia.php?p=taxdetails&id=1086844 on 2024-05-18
Date action by
basis of record
Index Fungorum (May 2009 version). , available online at http://www.indexfungorum.org/
note: as fossil fungus [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] 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] current name source Saxena, R. K.; Wijayawardene, N. N.; Dai, D. Q.; Hyde, K. D.; Kirk, P. M. (2021). Diversity in fossil fungal spores. <em>Mycosphere.</em> 12(1): 670-874., available online at https://doi.org/10.5943/mycosphere/12/1/8 [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] From other sources
Descriptive info Upper Devonian (Frasnian); France (Beaulieu, Pas-de-Calais). (Index Nominum Genericorum) [details]Taxonomic remark As Acritarcha in Index Nominum Genericorum; presently treated as Sporae dispersae (as fossil fungal spores) in IRMNG. From Saxena et al., 2021: Taugourdeau (1968) stated that this single specimen does not resemble any microfossil already described. He also did not rule out possibility of contamination. He speculated possibility of this specimen being either a broken Diacrodian or half an organism of some Conjugales (Desmidiales) or linear colony such as certain Desmochitina or hydrozoans. But he rejected all the above possibilities and could not reach to any conclusion. Saxena & Sarkar (1986) emended the generic diagnosis, to allow inclusion of a number of fungal conidia that show a general similarity to the morphology of Tetraploa. This fungus generally grows on Poaceae, and the fossil species occur in association with grass pollen. Saxena & Sarkar (1986) adduced this to support their suggestion that Frasnacritetrus should not be considered an acritarch but a fossil genus with affinity to Tetraploa. [details] |
