Need help identify a 3 mm fossil

[Denis Arcand]

I'm looking for help from an Ordovician specialist to identify a fossil I found. I've been cutting and prepping some of my first fossils and came across something I missed before. It looks like a small, 3.mm trilobite on top of a brachiopod, but I'm not sure. It's well-defined, but I can't identify it.

 

Any help would be appreciated! 

 

Edited August 5 by Denis Arcand

[Kane]

You did not specify the formation, so I am assuming Nicolet River Fm along with your other finds. It is a calymenid, and you likely know which one it is as there is only one.  

[Denis Arcand]

41 minutes ago, Kane said:

You did not specify the formation, so I am assuming Nicolet River Fm along with your other finds. It is a calymenid, and you likely know which one it is as there is only one.  

 

Correct, it's the Nicolet River Fm

 

Wow, that's a very small one, how big can calymenids grow?

 

That is wonderful. Thanks!

 

Edited August 6 by Denis Arcand

[Denis Arcand]

I have no idea how to prep it, and how to present it in my display ?  

[Kane]

I would judge from the photos it is an incomplete and partially disarticulated. Given its size it would not take more than ten minutes under abrasion. 

 

But, as you discovered, it is always a good idea to look at your finds again. In my case, I did not see this complete Flexicalymene senaria until I had it under the scope and prepped it out. I had pocketed this piece for the gastropod steinkern. 

[Kane]

4 hours ago, Denis Arcand said:

 

Correct, it's the Nicolet River Fm

 

Wow, that's a very small one, how big can calymenids grow?!

 

They could grow pretty big. In QC area I have found them at 10cm. On Anticosti, 12+ cm. In the Devonian of Ontario about 12 cm.