Oxfordian
Period
The Oxfordian is, in the ICS' geologic timescale, the earliest age of the Late Jurassic Epoch, or the lowest stage of the Upper Jurassic Series. It spans the time between 161.5 ± 1.0 Ma and 154.8 ± 0.8 Ma. The Oxfordian is preceded by the... Wikipedia
Occurred: 163.5 (+/- 1) million years ago - 157.3 (+/- 1) million years ago
Epoch: Late Jurassic
Chronological unit: Age
Lower boundary GSSP candidate section(s): Redcliff Point, Dorset, UK; Savouron, Provence, France
Stratigraphic unit: Stage
Organisms