The Milk River Formation is a near- shore to terrestrial sedimentary unit deposited during the Late Cretaceous (late Santonian to early Campanian) in southern Alberta. It is equivalent to the marine Lea Park Formation of eastern Alberta, and the Eagle and Telegraph Creek Formations of north-central Montana, and to the upper part of the Niobrara Formation in Kansas.
In Alberta, the Milk River Formation is subdivided into the Telegraph Creek, Virgelle, and Deadhorse Coulee Members. The formation has produced an extensive but little known vertebrate fauna (see Table). Radiometric dates place deposition of the Milk River Formation between ~84.5 Ma and 83.5 Ma (Payenberg et al. 2002).
Read more about Milk River Formation: Members, Vertebrates, See Also, Footnotes
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