Pearce, Ben K.D.; Tupper, Andrew S.; Pudritz, Ralph E.; Higgs, Paul G. (2018-03-01). "Constraining the Time Interval for the Origin of Life on Earth". Astrobiology (dalam bahasa Inggris). 18 (3): 343–364. Bibcode:2018AsBio..18..343P. doi:10.1089/ast.2017.1674. PMID29570409.
Beraldi-Campesi, Hugo (February 23, 2013). "Early life on land and the first terrestrial ecosystems". Ecological Processes. 2 (1): 1–17. doi:10.1186/2192-1709-2-1. ISSN2192-1709.
Pearce, Ben K.D.; Tupper, Andrew S.; Pudritz, Ralph E.; Higgs, Paul G. (2018-03-01). "Constraining the Time Interval for the Origin of Life on Earth". Astrobiology (dalam bahasa Inggris). 18 (3): 343–364. Bibcode:2018AsBio..18..343P. doi:10.1089/ast.2017.1674. PMID29570409.
Barry, Patrick L. (January 28, 2002). Phillips, Tony, ed. "The Great Dying". Science@NASA. Marshall Space Flight Center. Diarsipkan dari versi asli tanggal 2010-04-10. Diakses tanggal 2015-01-22.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
Pearce, Ben K.D.; Tupper, Andrew S.; Pudritz, Ralph E.; Higgs, Paul G. (2018-03-01). "Constraining the Time Interval for the Origin of Life on Earth". Astrobiology (dalam bahasa Inggris). 18 (3): 343–364. Bibcode:2018AsBio..18..343P. doi:10.1089/ast.2017.1674. PMID29570409.
Novacek, Michael J. (November 8, 2014). "Prehistory's Brilliant Future". Sunday Review. The New York Times. New York. ISSN0362-4331. Diarsipkan dari versi asli tanggal 2014-11-10. Diakses tanggal 2014-12-25.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan) "A version of this article appears in print on Nov. 9, 2014, Section SR, Page 6 of the New York edition with the headline: Prehistory's Brilliant Future."
Novacek, Michael J. (November 8, 2014). "Prehistory's Brilliant Future". Sunday Review. The New York Times. New York. ISSN0362-4331. Diarsipkan dari versi asli tanggal 2014-11-10. Diakses tanggal 2014-12-25.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan) "A version of this article appears in print on Nov. 9, 2014, Section SR, Page 6 of the New York edition with the headline: Prehistory's Brilliant Future."
Barry, Patrick L. (January 28, 2002). Phillips, Tony, ed. "The Great Dying". Science@NASA. Marshall Space Flight Center. Diarsipkan dari versi asli tanggal 2010-04-10. Diakses tanggal 2015-01-22.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan)
Novacek, Michael J. (November 8, 2014). "Prehistory's Brilliant Future". Sunday Review. The New York Times. New York. ISSN0362-4331. Diarsipkan dari versi asli tanggal 2014-11-10. Diakses tanggal 2014-12-25.Parameter |url-status= yang tidak diketahui akan diabaikan (bantuan) "A version of this article appears in print on Nov. 9, 2014, Section SR, Page 6 of the New York edition with the headline: Prehistory's Brilliant Future."
Beraldi-Campesi, Hugo (February 23, 2013). "Early life on land and the first terrestrial ecosystems". Ecological Processes. 2 (1): 1–17. doi:10.1186/2192-1709-2-1. ISSN2192-1709.