erathem


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erathem

(ˈɪərəˌθɛm)
n
(Geological Science) geology the stratum of rocks representing a specific geological era

erathem

The rocks formed during a geological era.
References in periodicals archive ?
Hence, we can refer to the Maastrichtian Stage of the Cretaceous System of the Mesozoic Erathem in a chronostratigraphic sense or to the Maastrichtian Age of the Cretaceous Period of the Mesozoic Era in a geochronologic sense; similarly, chronostratigraphic units can be subdivided into lower, middle and upper subunits; geochronologic units can be subdivided into early, mid and late subunits.