Turonian

Common card · No. 455556

The Turonian is, in the ICS' geologic timescale, the second age in the Late Cretaceous Epoch, or a stage in the Upper Cretaceous Series. It spans the time between 93.9 ± 0.2 Ma and 89.8 ± 0.3 Ma (million years ago). The Turonian is preceded by the Cenomanian Stage and underlies the Coniacian Stage. At the beginning of the Turonian an oceanic anoxic event (OAE 2) took place, also referred to as the Cenomanian-Turonian boundary event or the "Bonarelli Event". Sea level fall took place in the latter part of the Turonian from the highstand at the beginning of the Turonian.

Read on Wikipedia · Image Mannion, P. D. (2013). "The latitudinal biodiversity gradient through deep time". Trends in Ecology and Evolution 29 (1). DOI:10.1016/j.tree.2013.09.012., CC BY 3.0