ISBN: | 978-5-5108-7980-3 |
High Quality Content by WIKIPEDIA articles! The Cenomanian is, in the ICS` geological timescale the oldest or earliest age of the Late Cretaceous epoch or the lowest stage of the Upper Cretaceous series. An age is a unit of geochronology: it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name.