Dinosaur material in the mid-west

[John Schneiderman <dino@revelation.unomaha.edu>]

I recently received an article about Missouri's 2nd Dinosaur find.  A 
left astragalocalcaneum which is tentatively referred to the ceratosauroids.
What is interesting about the find is that it is from the Upper Cretaceous.

What I am now looking for is information or listings of dinosaur finds 
for the following states:

Nebraska (I believe there has been 4 found so far; a distal end of 
          'iguanodontid' femur, sacrum, 'albertosaur' tooth, and ?)

Iowa

Minnesota (? I have heard of a hadrosaur find)

Missouri (2 so far)

Arkansas (sauropod footprints, 'ornithomimid' Arkansaurus, and ?)


Can anyone help verify and/or provide information on material found, 
where it is stored, and any catalog numbers.

Thank You
---John Schneiderman (dino@revelation.unomaha.edu)