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IRMNG taxon detailsCaveasphaera Xiao & Knoll, 2000 †
marine,
fossil only
Xiao, S.; Knoll, A. H. (2000). Phosphatized animal embryos from the Neoproterozoic Doushantuo Formation at Weng'an, Guizhou, South China. <em>Journal of Paleontology.</em> 74(5): 767-788., available online at https://doi.org/10.1666/0022-3360(2000)074<0767:paeftn>2.0.co;2
page(s): 779 [details]
Taxonomic remark Probably metazoan, but insufficient features to assign to any specific animal phylum, refer Yin et al., 2019, who state:...
Taxonomic remark Probably metazoan, but insufficient features to assign to any specific animal phylum, refer Yin et al., 2019, who state: For this reason, we cannot discriminate the possibility that Caveasphaera was a close holozoan relative of metazoans from the possibility that it represents a stem- or crown-metazoan. Therefore, we hold back on concluding that Caveasphaera evidences the origin of animals and their embryology, but it clearly indicates that processes similar to gastrulation, which is a shared primitive feature of metazoans, were present already by the early Ediacaran. [details]
IRMNG (2024). Caveasphaera Xiao & Knoll, 2000 †. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=1155762 on 2025-01-25
Date action by
original description
Xiao, S.; Knoll, A. H. (2000). Phosphatized animal embryos from the Neoproterozoic Doushantuo Formation at Weng'an, Guizhou, South China. <em>Journal of Paleontology.</em> 74(5): 767-788., available online at https://doi.org/10.1666/0022-3360(2000)074<0767:paeftn>2.0.co;2
page(s): 779 [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 Previously at http://ubio.org/NomenclatorZoologicus/ (URL no longer current).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] verified source for family Yin, Z.; Vargas, K.; Cunningham, J.; Bengtson, S.; Zhu, M.; Marone, F.; Donoghue, P. (2019). The Early Ediacaran Caveasphaera foreshadows the evolutionary origin of animal-like embryology. <em>Current Biology.</em> 29(24): 4307-4314.e2., available online at https://doi.org/10.1016/j.cub.2019.10.057 [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]. Previously at http://ubio.org/NomenclatorZoologicus/ (URL no longer current). , available online at https://insecta.bio.spbu.ru/z/nomenclator_zoologicus_PDF.htm [details] current name source Yin, Z.; Vargas, K.; Cunningham, J.; Bengtson, S.; Zhu, M.; Marone, F.; Donoghue, P. (2019). The Early Ediacaran Caveasphaera foreshadows the evolutionary origin of animal-like embryology. <em>Current Biology.</em> 29(24): 4307-4314.e2., available online at https://doi.org/10.1016/j.cub.2019.10.057 [details] extant flag source 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] Unreviewed
Taxonomic remark Probably metazoan, but insufficient features to assign to any specific animal phylum, refer Yin et al., 2019, who state: For this reason, we cannot discriminate the possibility that Caveasphaera was a close holozoan relative of metazoans from the possibility that it represents a stem- or crown-metazoan. Therefore, we hold back on concluding that Caveasphaera evidences the origin of animals and their embryology, but it clearly indicates that processes similar to gastrulation, which is a shared primitive feature of metazoans, were present already by the early Ediacaran. [details]
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