The Cenomanian age (also known as Woodbinian [depreciated by the ICS]) is the first or earliest or oldest Geochronological "geologic age" of the Late Cretaceous Epoch. Like all geological time units the Cenomanian age is associated with a Chronostratigraphic stratum or "geologic stage" (or faunal stage—see biostratigraphy and geobiology) of the same name, the "Cenomanian stage" (and its relationship to the parents epochs' strata, called a series, is that it is one of many in the series). Each belong to the Cretaceous period and Cretaceous system as well.