Re: [dinosaur] Age of Cretaceous Formation

Ben Creisler
[email protected]

If you haven't already, you might check some of refs in this blog post:

Minnesota's dinosaurs

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On Sun, Aug 11, 2019 at 5:38 PM John Schneiderman <[email protected]>
wrote:

> Looking for updated information on the Windrow Formation of Minnesota.
>
> Age of Formation.
>
> Formation correlates with what other formations.
>
> Environmental deposition of the formation.
>
> Any fossils of note found.
>
> Thank you.
>
>
> References:
>
> T. THWAITES ; W. H. TWENHOFEL, 01 Jun 1921 “Windrow formation: An upland
> gravel formation of the driftless and adjacent areas of the upper
> Mississippi Valley” GSA Bulletin (1921) 32 (2): 293-314.
> https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1130_GSAB-2D32-2D293&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=Ep-Hd8yzMdOHkRYjIB4jTaq9mG0g4g4y9av2LhdTWKU&s=ezB5B7NsHaOdlaKuE_tbcTNnsmIoq5xe1moqov_UJhI&e= 
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__doi.org_10.1130_GSAB-2D32-2D293&d=DwMCaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=SHU2418fGfgunJnAFbOu4SS9_S9rVir3gwjtAnh386U&s=1jLYu2r6kgUtRQUg1JqLnpX5nzIddSee0MzPN4gsbZI&e=>
>
> George W. Andrews. 1958 “Windrow Formation of Upper Mississippi Valley
> Region a Sedimentary and Stratigraphic Study”. The Journal of Geology Vol.
> 66, No. 6 (Nov., 1958), pp. 597-624
>