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 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago).

Turonian Stage, second of six main divisions (in ascending order) in the Upper Cretaceous Series, representing rocks deposited worldwide during the Turonian Age, which occurred 93.9 million to 89.8 million years ago during the Cretaceous Period.

The Turonian proposed by d’Orbigny (1847) in 1842 was later divided by him into a lower Cenomanian Stage and an upper Turonian Stage. The name is derived from the Touraine region of France (Turones and Turonia of the Romans), and d’Orbigny (1852) clarified his later definition by selecting a type region lying between Saumur (on the Loire ...

The Cenomanian-Turonian boundary event, also known as the Cenomanian-Turonian extinction, Cenomanian-Turonian Oceanic Anoxic Event (OAE 2), and referred to also as the Bonarelli Event or Level, [2] was an anoxic extinction event in the Cretaceous period.

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 ± 0.8 Ma and 89.8 ± 1 Ma (million years ago).

The meaning of TURONIAN is of, relating to, or constituting a subdivision of the European Cretaceous.

The Turonian Age, a geological age during the Late Cretaceous Epoch of the Cretaceous Period, in the Mesozoic Era

2021年4月9日 · Here, we offer a refined astrochronology of the Early Turonian based on laterally consistent precession signals preserved in offshore strata of the Bohemian Cretaceous Basin (central Europe).

The Turonian (94–90 Ma) is the second epoch of the Late Cretaceous, occurring after the Cenomanian, and before the Coniacian. What happened during this time? An anoxic event took place at the beginning of the Turonian, which is called the "Bonarelli Event".

Turonian-Coniacian-Santonian The Turonian was characterized by a major global sea-level highstand, reducing the nonmarine sedimentary record. By the Coniacian, needle-leaved conifers and Podozamites had disappeared and taxodiaceous foliage was common.