1. Biology Online. (2020). Phylogeny. Accessed 19 June 2020 from
https://www.biologyonline.com/dictionary/phylogeny
2. Dodd, M. S., Papineau, D., Grenne, T., Slack, J. F., Rittner, M., Pirajno, F., O’Neil, J., & Little, C. T. (2017). Evidence for early life in earth’s oldest hydrothermal vent precipitates. Nature, 543(7643), 60–64.
3. Gittleman, J. L. (2020). Phylogeny. Accessed 19 June 2020 from
https://www.britannica.com/science/phylogeny/Taxonomic-systems
4. Knoll, A. H. (2003). Life on a young planet: the first three billion years of evolution on earth. Princeton: Princeton University Press.
5. Knoll, A. H. (2015). Life on a young planet: The first three billion years of evolution on earth-updated edition (Vol. 35). Princeton: Princeton University Press.