Stumped: Gastropods from Dugway Utah

[LabRatKing]

So, there’s a very bright, yellow-white exposure of a very soft sediment in the Dugway Geode Beds near Site B.

 

I cannot find anything about any fossils from the beds proper.

 

Im guessing these are in the Lake Bonneville Pleistocene era.

 

Have been unable to find any details on these guys and sadly have no clear data on the various members exposed in the area due to the famed geodes.

 

All suggestions welcome!

[LabRatKing]

I should add they are very plentiful. I filled a 50mL conical tube in about ten minutes. The exposure  is about 8 meters high and well above the level of the extant wetlands and salt marshes to the south. There were no other conspecifics and I did grab another a half kilo of the sediment for microscopy- just haven’t got that far yet.

[DPS Ammonite]

Here is an older paper on 

recent Utah snails.

 

https://collections.lib.utah.edu/dl_files/04/91/04915c90a4febc5f2340adf3d87f75ac23b505fb.pdf