1. Glikson AY (2014) Evolution of the atmosphere, fire and the anthropocene climate event horizon. Springer briefs in earth sciences. ISSN 2191-5369, https://doi.org/10.1007/978-94-007-7332-5
2. Solanki SK (2002) Solar variability and climate change: is there a link? Sol Phys 43:59–513
3. Pfeilsticker, K. (2006). Paleo-climate. Institut für Umweltphysik, Universität Heidelberg, INF 229, 69120 Heidelberg
4. Gradstein F, Ogg J, Smith A (2004) A geologic time scale. Cambridge University Press, Cambridge, p 598
5. Hallam A, Wignall PB (1997) Mass extinctions and their aftermath. Oxford University Press, Oxford