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IRMNG taxon detailsAstroentactinia Nazarov, 1975 †
marine,
fossil only
Trudy Geol. Inst. Leningr. No. 275
page(s): 82 [details]
Taxonomic remark From Nestell & Nestell, 2020: Won (1997a) reported that the species A. stellata from the Gogo Formation does not have any...
Taxonomic remark From Nestell & Nestell, 2020: Won (1997a) reported that the species A. stellata from the Gogo Formation does not have any apophyses and, based on this observation, she concluded that the genus Astroentactinia is a junior synonym of the genus Entactinia Foreman 1963. This decision was supported by Noble et al. (2017), and moreover these authors placed the genera Entactinia and Astroentactinia in the synonymy of the genus Stigmosphaerostylus, with which we do not agree. However, the genus Entactinia has a six-rayed spicule with six primary spines whereas Astroentactinia has a seven- and more-rayed spicule with numerous spines. Even the presence of apophyses in the genus Astroentactinia has never been illustrated, and we assume that there are no apophyses in it; the genus still differs from the genus Entactinia by the seven or more-rayed spicule and the presence of numerous external spines, and thus the genus Astroentactinia should be valid. [details]
IRMNG (2024). Astroentactinia Nazarov, 1975 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1104191 on 2024-05-15
Date action by
original description
Trudy Geol. Inst. Leningr. No. 275
page(s): 82 [details] basis of record Sepkoski, J. J., Jr. (2002). A compendium of fossil marine animal genera. <em>Bulletins of American Paleontology.</em> 363, 1-560. [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]. , available online at http://ubio.org/NomenclatorZoologicus/ [details] verified source for family Nestell, G. P.; Nestell, M. K. (2020). Roadian (earliest Guadalupian, Middle Permian) radiolarians from the Guadalupe Mountains,West Texas, USA Part I: Albaillellaria and Entactinaria. <em>Micropaleontology.</em> 66(1): 1-50., available online at https://doi.org/10.47894/mpal.66.1.01 [details] name verified source Neave, S. A. and successors. (1939-2004). Nomenclator Zoologicus, vols. 1-10 online. [developed by uBio, hosted online at MBLWHOI Library]. , available online at http://ubio.org/NomenclatorZoologicus/ [details] current name source Nestell, G. P.; Nestell, M. K. (2020). Roadian (earliest Guadalupian, Middle Permian) radiolarians from the Guadalupe Mountains,West Texas, USA Part I: Albaillellaria and Entactinaria. <em>Micropaleontology.</em> 66(1): 1-50., available online at https://doi.org/10.47894/mpal.66.1.01 [details] extant flag source Sepkoski, J. J., Jr. (2002). A compendium of fossil marine animal genera. <em>Bulletins of American Paleontology.</em> 363, 1-560. [details] habitat flag source Sepkoski, J. J., Jr. (2002). A compendium of fossil marine animal genera. <em>Bulletins of American Paleontology.</em> 363, 1-560. [details] From other sources
Descriptive info Marine, fossil: Devonian (Sepkoski 2002) [details]Taxonomic remark From Nestell & Nestell, 2020: Won (1997a) reported that the species A. stellata from the Gogo Formation does not have any apophyses and, based on this observation, she concluded that the genus Astroentactinia is a junior synonym of the genus Entactinia Foreman 1963. This decision was supported by Noble et al. (2017), and moreover these authors placed the genera Entactinia and Astroentactinia in the synonymy of the genus Stigmosphaerostylus, with which we do not agree. However, the genus Entactinia has a six-rayed spicule with six primary spines whereas Astroentactinia has a seven- and more-rayed spicule with numerous spines. Even the presence of apophyses in the genus Astroentactinia has never been illustrated, and we assume that there are no apophyses in it; the genus still differs from the genus Entactinia by the seven or more-rayed spicule and the presence of numerous external spines, and thus the genus Astroentactinia should be valid. [details] |
