Glyptocrinus sp. ?

[Tetradium]

Ordovician, Decorah Formation Minnesota

 

Just want your opinions on it before I post it to my image gallery. I'm not a crinoid expert and this is rare - only my second crinoid from the Decorah Formation  with more than 60% completeness. The first is a tiny one not even 2 inches from crown to base. This is more of a medium size with 110 mm from head to base. Using paint I pinpointed different areas for helpful info. 

#1 Is the arms - can't really see in picture but very clear to me some scavenger buried the arms - I could see a few faint tunnels a short distance away. 

 

#2 is most of the main stem - partial exposed. 

 

#3 is scattered stem pieces, a couple belong to a different genus which I had not identify yet. 

 

#4 is a fragment of arm? 

 

#5 is the base. 

[Fossildude19]

Made the numbers more visible:

 

[Tetradium]

Ah ok thanks. I will have to thicken it in the future. 

[connorp]

Nice find. Hard to answer without more prep. The different parts might not even be associated.

[ClearLake]

Interesting piece, but I would need a lot more definitive evidence (through prep perhaps) that these are associated pieces of a 60% complete crinoid. I see a really nice looking hash plate, but welcome evidence of association.