Earlie Formation

The Earlie Formation consists of interbedded glauconitic siltstones and fine-grained sandstones and shales. ==Deposition and stratigraphic relationships==

The Earlie Formation underlies the plains of Alberta and eastern Saskatchewan. It rests conformably on the unnamed basal sandstone unit that was deposited on the Precambrian rocks of the North American Craton at the start of a marine transgression of that area. It is overlain by the Pika Formation or, in areas where the Pika is not present, by the Deadwood Formation. It thickens to the west where it grades into the Mount Whyte, Cathedral, Stephen, and lower Pika Formations; the upper Eldon formation is age-equivalent. It thins eastward to zero in Saskatchewan. Trilobite biostratigraphy supports an age in the upper Wuliuan (Ehmaniella Zone, lower to upper Altiocculus subzone) ==References==