co2: Jurassic CO2 data

Description Usage Format Source References


CO2 data during the Jurassic. Modified from the co2 set in RPANDA, originally taken from Mayhew et al (2008, 2012).




A data frame with 53 rows and 2 variables:


A numeric vector representing time since the beginning of the data frame age, 520 million years ago, in million years. We set this from past to present as opposed to present to past since birth-death functions in paleobuddy consider time going in said direction.


A numeric vector representing CO2 concentration as the ratio of CO2 mass at t over the present.



Morlon H. et al (2016) RPANDA: an R package for macroevolutionary analyses on phylogenetic trees. Methods in Ecology and Evolution 7: 589-597.

Mayhew, P.J. et al (2008) A long-term association between global temperature and biodiversity, origination and extinction in the fossil record Proc. of the Royal Soc. B 275:47-53.

Mayhew, P.J. et al (2012) Biodiversity tracks temperature over time Proc. of the Nat. Ac. of Sci. of the USA 109:15141-15145.

Berner R.A. & Kothavala, Z. (2001) GEOCARB III: A revised model of atmospheric CO2 over Phanerozoic time Am. J. Sci. 301:182–204.

brpetrucci/paleobuddy documentation built on Aug. 8, 2020, 2:03 a.m.