DAKOTA GROUP
Source: 567
Da‐ko″ta group′ (?). (Geol.) A subdivision at the base of the cretaceous formation in Western North America; — so named from the region where the strata were first studied.
Source: 567
Da‐ko″ta group′ (?). (Geol.) A subdivision at the base of the cretaceous formation in Western North America; — so named from the region where the strata were first studied.