1. B. Waggoner. What Is The Youngest Fossil Ever Found?. (19 December 2016). Access Date: 07 October 2020. Reference URL: https://www.quora.com/What-is-the-youngest-fossil-ever-found/answer/Ben-Waggoner-1 Quora
2. San Diego Natural History Museum. What Is A Fossil?. (10 May 2012). Access Date: 07 October 2020. Reference URL: https://web.archive.org/web/20120510101706/http://sdnhm.org/science/paleontology/resources/frequent/ San Diego Natural History Museum
3. Microbially Induced Sedimentary Structures Recording an Ancient Ecosystem in theca.3.48 Billion-Year-Old Dresser Formation, Pilbara, Western Australia
4. B. Vastag. Oldest Microfossils Raise Hopes For Life On Mars. (21 August 2011). Access Date: 07 October 2020. Reference URL: https://www.washingtonpost.com/national/health-science/oldest-microfossils-hail-from-34-billion-years-ago-raise-hopes-for-life-on-mars/2011/08/19/gIQAHK8UUJ_story.html?hpid=z3 Washington Post
5. Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon