Rujukan Tonos

  1. 1 2 Plumb, K. A. (June 1, 1991). "New Precambrian time scale". Episodes. 14 (2): 139–140. doi:10.18814/epiiugs/1991/v14i2/005. Dicapai pada 16 January 2023.
  2. ↑ Shields, Graham A.; Halversonb, Galen P.; Porter, Susannah M. (2018). "Descent into the Cryogenian". Precambrian Research. 319. doi:10.1016/j.precamres.2018.08.015.
  3. ↑ Shields-Zhou, Graham A.; Porter, Susannah; Halverson, Galen P. (2016). "A new rock-based definition for the Cryogenian Period (circa 720 – 635 Ma)". Episodes. 39 (1): 3–8. doi:10.18814/epiiugs/2016/v39i1/89231. ISSN 0705-3797.
  4. ↑ Turner, Elizabeth C. (28 July 2021). "Possible poriferan body fossils in early Neoproterozoic microbial reefs". Nature. 596 (7870): 87–91. Bibcode:2021Natur.596...87T. doi:10.1038/s41586-021-03773-z. PMC 8338550 Check |pmc= value (bantuan). PMID 34321662.
  5. ↑ Kliman, Richard M. (Apr 14, 2016). Encyclopedia of Evolutionary Biology. Academic Press. m/s. 251. ISBN 9780128004265.

Rujukan

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