Crinoid

[ParkerPaleo]

Any clues to the genus of these crinoids?  From Augusta, Iowa.

[minnbuckeye]

Nice finds. I wish I was better at IDing crinoid calyxes but I'll guess azigocrinus (The one on the right)????. If I was then I could label mine better!!! I had the opportunity to hunt a private quarry in Augusta a few years ago. Were these from a quarry? 

 

 Mike  

 

 from E.R.Matheau-Raven.

 

 

 

 

 

 

 

 

 

 

 

 

[ParkerPaleo]

I received the picture from a friend, the specimen are his.  Unsure of any provenance beyond what I posted.  I'll see if I can get more of the story.