Recently I took a look at Amsden / Tyler formation in the Dickinson area. I downloaded a PDF but was unable to get the link to make it easy to share on the blog.
I tried something different tonight. I have no idea how it works, why it works, and whether it will work for you, but here is the link for a 2017 UND thesis on the Tyler formation in the Dickinson oil field, southwestern North Dakota.
If it works, great. If not, google sequence stratigraphy of the tyler formation and then download the pdf that will pop up.