Nama assemblage: Difference between revisions

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The Nama assemblage was the last of the Ediacaran biotic assemblages, following the Avalon and White Sea assemblages, and spanning from c. 550 Ma to c. 539 Ma.^[1] The assemblage was characterized by a faunal turnover, with the decline of the preexisting White Sea biota. The drop of diversity has been compared to the mass extinctions of the Phanerozoic. A second drop of diversity occurred at the Ediacaran–Cambrian boundary, concluding the Nama assemblages with the end-Ediacaran extinction.^[2]^[3]^[4]

References

^ Wood, Rachel; Bowyer, Fred T.; Alexander, Ruaridh; Yilales, Mariana; Uahengo, Collen-Issia; Kaputuaza, Kavevaza; Ndeunyema, Junias; Curtis, Andrew (September 2023). "New Ediacaran biota from the oldest Nama Group, Namibia (Tsaus Mountains), and re-definition of the Nama Assemblage". Geological Magazine. 160 (9): 1673–1686. doi:10.1017/S0016756823000638. ISSN 0016-7568.
^ Bowyer, Fred T.; Uahengo, Collen-Issia; Kaputuaza, Kavevaza; Ndeunyema, Junias; Yilales, Mariana; Alexander, Ruaridh D.; Curtis, Andrew; Wood, Rachel A. (15 October 2023). "Constraining the onset and environmental setting of metazoan biomineralization: The Ediacaran Nama Group of the Tsaus Mountains, Namibia". Earth and Planetary Science Letters. 620: 118336. doi:10.1016/j.epsl.2023.118336. ISSN 0012-821X.
^ Evans, Scott D.; Tu, Chenyi; Rizzo, Adriana; Surprenant, Rachel L.; Boan, Phillip C.; McCandless, Heather; Marshall, Nathan; Xiao, Shuhai; Droser, Mary L. (15 November 2022). "Environmental drivers of the first major animal extinction across the Ediacaran White Sea-Nama transition". Proceedings of the National Academy of Sciences. 119 (46). doi:10.1073/pnas.2207475119. ISSN 0027-8424. PMC 9674242. PMID 36343248.{{cite journal}}: CS1 maint: PMC format (link)
^ Bottjer, David J.; Clapham, Matthew E. (2006). Xiao, Shuhai; Kaufman, Alan J. (eds.). Neoproterozoic Geobiology and Paleobiology. Dordrecht: Springer Netherlands. pp. 91–114. doi:10.1007/1-4020-5202-2_4. ISBN 978-1-4020-5202-6.

[1] Wood, Rachel; Bowyer, Fred T.; Alexander, Ruaridh; Yilales, Mariana; Uahengo, Collen-Issia; Kaputuaza, Kavevaza; Ndeunyema, Junias; Curtis, Andrew (September 2023). "New Ediacaran biota from the oldest Nama Group, Namibia (Tsaus Mountains), and re-definition of the Nama Assemblage". Geological Magazine. 160 (9): 1673–1686. doi:10.1017/S0016756823000638. ISSN 0016-7568.

[2] Bowyer, Fred T.; Uahengo, Collen-Issia; Kaputuaza, Kavevaza; Ndeunyema, Junias; Yilales, Mariana; Alexander, Ruaridh D.; Curtis, Andrew; Wood, Rachel A. (15 October 2023). "Constraining the onset and environmental setting of metazoan biomineralization: The Ediacaran Nama Group of the Tsaus Mountains, Namibia". Earth and Planetary Science Letters. 620: 118336. doi:10.1016/j.epsl.2023.118336. ISSN 0012-821X.

[3] Evans, Scott D.; Tu, Chenyi; Rizzo, Adriana; Surprenant, Rachel L.; Boan, Phillip C.; McCandless, Heather; Marshall, Nathan; Xiao, Shuhai; Droser, Mary L. (15 November 2022). "Environmental drivers of the first major animal extinction across the Ediacaran White Sea-Nama transition". Proceedings of the National Academy of Sciences. 119 (46). doi:10.1073/pnas.2207475119. ISSN 0027-8424. PMC 9674242. PMID 36343248.{{cite journal}}: CS1 maint: PMC format (link)

[4] Bottjer, David J.; Clapham, Matthew E. (2006). Xiao, Shuhai; Kaufman, Alan J. (eds.). Neoproterozoic Geobiology and Paleobiology. Dordrecht: Springer Netherlands. pp. 91–114. doi:10.1007/1-4020-5202-2_4. ISBN 978-1-4020-5202-6.

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