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IRMNG taxon detailsCheilofilum N.J. Butterfield, 2005 †
marine,
fossil only
Butterfield, N. J. (2005). Reconstructing a complex early Neoproterozoic eukaryote, Wynniatt Formation, arctic Canada. <em>Lethaia.</em> 38(2): 155-169., available online at https://doi.org/10.1080/00241160510013231
page(s): 168 [details]
Taxonomic remark Butterfield, 2005 reconstructs Cheilofilum as a "relatively complex, multicellular eukaryote, ... The filamentous,...
Taxonomic remark Butterfield, 2005 reconstructs Cheilofilum as a "relatively complex, multicellular eukaryote, ... The filamentous, occasionally branched thallus was composed of large cylindrical cells, and extended via rupture of cell termini.", with "close analogues among the annellophores and/or phialides (conidiophores) of various hyphomycetous fungi, though its large size and absence of an associated mycelium argue against its placement within the Fungi."; in IRMNG it is therefore currently allocated to Algae incertae sedis, since higher (=vascular) plants had not evolved at that time. One of its components may be a co-occuring form-taxon described as a new acritarch genus and species, Plicatosphaeridium impostor. [details]
IRMNG (2024). Cheilofilum N.J. Butterfield, 2005 †. Accessed at: https://irmng.org/aphia.php?p=taxdetails&id=1471609 on 2024-11-20
Date action by
original description
Butterfield, N. J. (2005). Reconstructing a complex early Neoproterozoic eukaryote, Wynniatt Formation, arctic Canada. <em>Lethaia.</em> 38(2): 155-169., available online at https://doi.org/10.1080/00241160510013231
page(s): 168 [details] basis of record www.organismnames.com (Jul 2012) / web search [details] current name source original publication [details] extant flag source web search (AJR) [details] habitat flag source web search (AJR) [details] Unreviewed
Taxonomic remark Butterfield, 2005 reconstructs Cheilofilum as a "relatively complex, multicellular eukaryote, ... The filamentous, occasionally branched thallus was composed of large cylindrical cells, and extended via rupture of cell termini.", with "close analogues among the annellophores and/or phialides (conidiophores) of various hyphomycetous fungi, though its large size and absence of an associated mycelium argue against its placement within the Fungi."; in IRMNG it is therefore currently allocated to Algae incertae sedis, since higher (=vascular) plants had not evolved at that time. One of its components may be a co-occuring form-taxon described as a new acritarch genus and species, Plicatosphaeridium impostor. [details]
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