The Mesoproterozoic – no “boring billion”

Iranian Journal of Earth Sciences

مقاله 1، دوره 11، شماره 4، دی 2019، صفحه 239-243   

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.30495/ijes.2019.669398

نویسندگان

Uwe-M. Troppenz^{* 1}؛ Sven Littkowski²

¹Naturforschende Gesellschaft Mecklenburg, Natureum, Ludwigslust, Germany

²Jamaica Focus Media Stream Corporation, Kingston, Jamaica

چکیده

The authors show that the Mesoproterozoic (1.6-1.0 bn year before present) was no “boring billion” but a “bustling billion” - not only with Stromatolites and their apex in the Calymmian and Ectasian but also with the presence of multicellular organisms. To make it visible a graphical reconstruction was created. For a long time, it was assumed that there existed no noteworthy biosphere on Earth before the Ediacaran (635-542 m year before present) – aside from bacteria which were responsible for the Stromatolites.  In literature, they called this age the “boring billion”. This term is preserved until today, despite that scientific research came to another result. In the books “Wohin die Spuren führen” (Troppenz 2015) and The New Precambrian“ (Troppenz 2017) the actual status of knowledge was compiled, and term “boring billion” replaced by “bustling billion”. Term “Montana Biota” (first location of Horodyskia) was established for the definitely existing biosphere. For the first time, the authors make an attempt to reconstruct life in the period between 1.88 and 0.78 bn, and revive the “bustling billion”.

کلیدواژه‌ها

Precambrian؛ Mesoproterozoic؛ multicellular life؛ boring billion؛ bustling billion؛ Montana Biota؛ reconstruction

مراجع

1. Bengtson S, Belivanova V, Rasmussen B, Whitehouse M (2009) The controversial ‘Cambrian’ fossils of the Vindhyan are real but more than a billion years older, Proceedings of the National Academy of Sciences 106 (19): 7729-7734.
2. Bengtson S, Rasmussen B, Krapez B (2007) The Paleoproterozoic megascopic Sterling biota, Paleobiology 33 (3): 351-381.
3. Bengtson S, Sallstedt T, Belivanova V, Whitehouse M (2017) Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae, PLOSbiology 15(3):1-38.
4. El Albani A, Macchiarelli R, Meunier A (2016) Aux origines de la vie: Une nouvelle histoire de l'évolution, Dunod, Paris 224 pp.
5. Grey K, Yochelson EL, Fedonkin MA, Martin DM (2010) Horodyskia williamsii new species, a Mesoproterozoic macrofossil from Western Australia, Precambrian Research 180(1-2): 1-17.
6. Han TM and Runnegar B (1992) Megascopic eukaryotic algae from the 2.1-billion-year-old negaunee iron-formation, Michigan, Science 257(5067): 232-235.
7. Menon LR, Mcilroy D, Brasier MD (2013) Evidence for Cnidaria-like behaviour in ca. 560 Ma Ediacaran Aspidella, Geology 41 (8): 895-898.
8. Rasmussen B, Bengtson S, Fletcher IR, Mcnaughton NJ (2002) Discoidal Impressions and Trace-Like Fossils More Than 1200 Million Years Old, Science 296 (5570): 1112-1115.
9. Rasmussen B, Bose PK, Sarkar S, Banerjee S, Fletcher IR,  Mcnaughton NJ (2002) 1.6 Ga UPb zircon age for the Chorhat Sandstone, lower Vindhyan, India: Possible implications for early evolution of animals, Geology 30 (2): 103-106.
10. Seilacher A (2007) Trace Fossil Analysis, Springer, 226p.
11. Troppenz UM (2014) Wohin die Spuren führen (Vol. 1), Parchim 172 pp.
12. Troppenz UM (2015) Wohin die Spuren führen (Vol. 2) Parchim 192 pp.
13. Troppenz UM (2017) The new Precambrian, No "boring", but bustling billions in a succession of evolutions and global catastrophes, Tetrada Verlag Parchim, 140 pp.
14. Troppenz UM, Vinx R,  Schmälzle D (2016) Bemerkenswerte Sedimentstrukturen in der 1,88-1,85 Milliarden Jahre alten Västervik-Formation, Schweden “-Mitteilungen der Naturforschenden Gesellschaft Mecklenburg (NGM) 16(1): 3-9.
15. Zhu S, Zhu M, Knoll AH, Yin Z, Zhao F, Sun S, Qu Y, Shi M, Liu H (2016) Decimetre-scale multicellular eukaryotes from the 1.56-billion-year-old Gaoyuzhuang Formation in North China” Nature communications 7: 11500.