Beltanelliformis

Beltanelliformis; Temporal range: Ediacaran 635–538.8 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Cyanobacteriota (?)
Genus:	†Beltanelliformis; Menner, 1974
Species
	B. brunsae Menner, 1974; B. minutae McIlroy et al., 2005;
Synonyms
	Nemiana Palij, 1976; Beltanelloides Sokolov, 1965; Hagenetta Hahn et Pflug, 1988; Namamedusium Zessin, 2008;

Beltanelliformis is a cyanobacterial/putative algae genus of discoid fossil that lived during the Ediacaran period around 635 to 538.8 million years ago. It contains two species, B. brunsae and B. minutae. It is sometimes ascribed to the Ediacaran Biota. Depending on its preservation, it is sometimes referred to as Nemiana or Beltanelloides.^[2]

The chemical signature obtained from organically preserved specimens points to a cyanobacterial affinity (cf. Nostoc).^[2]^[3] They are often found in high abundance in monospecific clusters.^[4]

References

↑ Keller, B.M.; Menner, V.V.; Stepanov, V.A.; Chumakov, N.M. (1974). "Новые находки Metazoa в вендомии Русской платформы" [New finds of metazoa in the Vendomii of the Russian platform] (PDF). Izvestiya Akademii Nauk SSR. Seriya Geologicheskaya (in Russian). 12: 130–134. Archived from the original (PDF) on 2007-02-07.
1 2 Bobrovskiy, Ilya; Hope, Janet M.; Krasnova, Anna; Ivantsov, Andrey; Brocks, Jochen J. (22 January 2018). "Molecular fossils from organically preserved Ediacara biota reveal cyanobacterial origin for Beltanelliformis". Nature Ecology & Evolution. 2 (3): 437–440. Bibcode:2018NatEE...2..437B. doi:10.1038/s41559-017-0438-6. PMID 29358605. S2CID 3334262.
↑ Ivantsov A.Yu.; Gritsenko V.P.; Konstantinenko L.I.; Zakrevskaya M.A. (2014). "Revision of the Problematic Vendian Macrofossil Beltanelliformis (=Beltanelloides, Nemiana)". Paleontological Journal. 48 (13): 1423–1448. Bibcode:2014PalJ...48.1415I. doi:10.1134/S0031030114130036. S2CID 128760957.
↑ Mitchell, Emily G.; Francovschi, Ion; Agić, Heda; Bekker, Andrey (2026-05-01). "Spatial analysis of Beltanelliformis (Nemiana) in Baltica". Precambrian Research. 436 108032. doi:10.1016/j.precamres.2026.108032. ISSN 0301-9268.

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[Keller_et_al_1974-1] Keller, B.M.; Menner, V.V.; Stepanov, V.A.; Chumakov, N.M. (1974). "Новые находки Metazoa в вендомии Русской платформы" [New finds of metazoa in the Vendomii of the Russian platform] (PDF). Izvestiya Akademii Nauk SSR. Seriya Geologicheskaya (in Russian). 12: 130–134. Archived from the original (PDF) on 2007-02-07.

[bob-2] 1 2 Bobrovskiy, Ilya; Hope, Janet M.; Krasnova, Anna; Ivantsov, Andrey; Brocks, Jochen J. (22 January 2018). "Molecular fossils from organically preserved Ediacara biota reveal cyanobacterial origin for Beltanelliformis". Nature Ecology & Evolution. 2 (3): 437–440. Bibcode:2018NatEE...2..437B. doi:10.1038/s41559-017-0438-6. PMID 29358605. S2CID 3334262.

[Ivantsov_et_al_2014-3] Ivantsov A.Yu.; Gritsenko V.P.; Konstantinenko L.I.; Zakrevskaya M.A. (2014). "Revision of the Problematic Vendian Macrofossil Beltanelliformis (=Beltanelloides, Nemiana)". Paleontological Journal. 48 (13): 1423–1448. Bibcode:2014PalJ...48.1415I. doi:10.1134/S0031030114130036. S2CID 128760957.

[4] Mitchell, Emily G.; Francovschi, Ion; Agić, Heda; Bekker, Andrey (2026-05-01). "Spatial analysis of Beltanelliformis (Nemiana) in Baltica". Precambrian Research. 436 108032. doi:10.1016/j.precamres.2026.108032. ISSN 0301-9268.

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References