White Sea assemblage explained
| White Sea Assemblage |
| Color: | Ediacaran |
| Top Bar Ref: | [1] |
| Time Start: | 560 |
| Time Start Prefix: | ~ |
| Time End: | 550 |
| Time End Prefix: | ~ |
| Image Outcrop: | File:Kimberella quadrata (Ediacaran fossil) in sandstone (Ust-Pinega Formation, Ediacaran, Neoproterozoic; White Sea, Russia) (29830060340).jpg |
| Caption Outcrop: | Kimberella fossil from the Ustʹ Pinega Formation near the White Sea in Russia. |
| Timeline: | Ediacaran assemblages |
The White Sea assemblage was the second of the three Late Ediacaran biotic assemblages, following the Avalon assemblage and preceding the Nama assemblage. It spanned from 560 Ma to 550 Ma. Showing an increase in genus diversity from the Avalon assemblage, it concluded with a faunal turnover often characterized as the first pulse of the end-Ediacaran extinction, with only 20% of White Sea taxa found in the later Nama assemblage despite similar taphonomic processes.[2] [3]
Notes and References
- Shen . Bing . Dong . Lin . Xiao . Shuhai . Kowalewski . Michal . 4 January 2008 . The Avalon explosion: evolution of Ediacara morphospace . Science . 319 . 5859 . 81–84 . 10.1126/science.1150279 . 1095-9203 . 18174439. 2008Sci...319...81S .
- 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 . en . 119 . 46 . e2207475119 . 10.1073/pnas.2207475119 . free . 0027-8424 . 9674242 . 36343248. 2022PNAS..11907475E .
- Book: Bottjer . David J. . Evolutionary Paleoecology of Ediacaran Benthic Marine Animals . Clapham . Matthew E. . 2006 . Springer Netherlands . 978-1-4020-5202-6 . Xiao . Shuhai . Dordrecht . 91–114 . en . 10.1007/1-4020-5202-2_4 . Kaufman . Alan J..
