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Turonian

Geologic 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. The Turonian is preceded by the Cenomanian Stage and... Wikipedia
Age: 93.9 million to 89.8 million years ago
Occurred: 93.9 million years ago - 89.8 (+/- 0.3) million years ago
Chronological unit: Age
Lower boundary definition: FAD of the Ammonite Watinoceras devonense
Lower boundary GSSP: Rock Canyon, Colorado, USA; 38°16′56″N 104°43′39″W / 38.2822°N 104.7275°W