TheHuronian (Makganyene) global glaciation began at the start of the Rhyacian and lasted 100 million years. It lasted about 80% of this period.[4]
For the time interval from 2250 Ma to 2060 Ma, an alternative period based on stratigraphy rather than chronometry, named either theJatulian or theEukaryian, was suggested in the geological timescale review 2012 edited by Gradstein et al.,[5] but as of December 2024[update], this has not yet been officially adopted by theIUGS.[6] The term Jatulian is, however, used in the regional stratigraphy of the Paleoproterozoic rocks ofFennoscandia.[7]
This is when theeukaryotes are thought to have originated from the symbiosis betweenasgardarchaea andalphaproteobacteria, as well as thesexual reproduction found within the eukaryotes only, thus the alternative name Eukaryian.[8][9][10] Macroscopic life is discovered to have started during the Rhyacian period.[11][12]
^Mänd, Kaarel; Lalonde, Stefan V.; Robbins, Leslie J.; Thoby, Marie; Paiste, Kärt; Kreitsmann, Timmu; Paiste, Päärn; Reinhard, Christopher T.; Romashkin, Alexandr E.; Planavsky, Noah J.; Kirsimäe, Kalle; Lepland, Aivo; Konhauser, Kurt O. (April 2020). "Palaeoproterozoic oxygenated oceans following the Lomagundi–Jatuli Event".Nature Geoscience.13 (4):302–306.Bibcode:2020NatGe..13..302M.doi:10.1038/s41561-020-0558-5.hdl:10037/19269.S2CID212732729.
^Van Kranendonk, Martin J. (2012). "16: A Chronostratigraphic Division of the Precambrian: Possibilities and Challenges". In Felix M. Gradstein; James G. Ogg; Mark D. Schmitz; abi M. Ogg (eds.).The geologic time scale 2012 (1st ed.). Amsterdam: Elsevier. pp. 359–365.doi:10.1016/B978-0-444-59425-9.00016-0.ISBN978-0-44-459425-9.
.jpg)
