Dakota Formation

The Dakota Formation (also Dakota Sandstone and Cockrum Sandstone, more formally the Dakota Group)is a geologic formation composed of sedimentary rocks deposited on the western side of the Late Cretaceous Western Interior Seaway. F.B. Meek and F.V. Hayden named it for exposures along the Missouri River near Dakota City, Nebraska. The strata lie unconformably atop Paleozoic and Precambrian rocks, and are the oldest Cretaceous rocks in the northern Great Plains, including Kansas, Nebraska, Iowa, Minnesota, and Wisconsin. It consists of sandy, shallow-marine deposits with intermittent mud flat sediments, and occasional stream deposits. It is an important aquifer in some areas of the Great Plains.

Read more about Dakota FormationGeological History, Two Sides of The Seaway, Vertebrate Paleofauna

Other articles related to "dakota, dakota formation":

... The genus Dakotamys ("Dakota mouse") was named by Eaton J.G ... Dakota refers to the Dakota Formation ... Dakotamys malcomi Eaton JG, 1995 Place Cenomanian (Upper Cretaceous)-age strata of the Dakota Formation, Utah ...
Dakota Sandstone - Two Sides of The Seaway
... Lower Cretaceous strata in the Rocky Mountain region have been called the Dakota Formation based on assumed correlation with the type section of the Dakota of the Great Plains ... Witzke and Ludvigson have argued that use of the name "Dakota" must reflect actual, not presumed correlation based on stratigraphy and composition of ... predominately sandstone, sedimentary rocks is now known as the Dakota Group, to dispel any suggestion of direct facies correlation ...
Dakota Formation - Vertebrate Paleofauna - Pterosaurs
... Pterosaurs of the Dakota Formation Taxon Presence Description Images Suborder Pterodactyloidea Tracks ... Known from both early and late Cretaceous strata in the Dakota Group ...

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