A few Ordovician unknowns

[connorp]

Here are a few fossils I recently collected from the Maquoketa Group (Upper Ordovician) in northern Illinois that I'm not sure about.

 

1) Maybe some kind of trace fossil?

 

2) The two things in question here are to the left and right of the pentagonal crinoid columnal. The small fossil on the left looks like it might be part of a trilobite genal spine? And the three-pointed fossil to the bottom right I have no idea about. I feel like I've seen something similar before but can't remember.

[connorp]

3) This looks like a brachiopod or bivalve fragment. My best guess is a partial shell of the bivalve Ambonychia.

 

[Tidgy's Dad]

1) Agree - trace fossil - burrows of some sort.

2) Genal spine piece and bryozoan.

3) Orthid brachiopod fragment. 

[Rockwood]

The little y shape bryozoan ?

Aulopora is listed as from the upper Ordovician. It looks more something like that to me. 

[TqB]

58 minutes ago, Rockwood said:

The little y shape bryozoan ?

Aulopora is listed as from the upper Ordovician. It looks more something like that to me. 

I agree.

[Tidgy's Dad]

2 hours ago, Rockwood said:

The little y shape bryozoan ?

Aulopora is listed as from the upper Ordovician. It looks more something like that to me. 

Could be. 

[Rockwood]

Neat little PacMan crinoid pinules there too. 

[Shamalama]

Yes, I agree with @Rockwood. The "Pac-Man" looking fossils are possibly from the arms of a Crinoid.

[connorp]

10 hours ago, Tidgy's Dad said:

1) Agree - trace fossil - burrows of some sort.

2) Genal spine piece and bryozoan.

3) Orthid brachiopod fragment. 

Orthid brachiopod looks like a good match. As for the genal spine, best guess would be Isotelus? Not seeing another good match on the Dry Dredgers ID page.

[Tidgy's Dad]

14 minutes ago, connorp said:

Orthid brachiopod looks like a good match. As for the genal spine, best guess would be Isotelus? Not seeing another good match on the Dry Dredgers ID page.

Not sure. I've just spent a couple of weeks trying to id trilobits from the Lawrenceburg road cut, Upper Ordovician and had precisely no luck at all.