Help IDing fossils

[Rosemary]

I am looking for help in making accurate IDs of some fossils from northcentral Indiana, wondering if they are bryozoans. All are approx 1/4"-1/2".

[Rockwood]

21 minutes ago, Rosemary said:

accurate IDs

No pressure. 

Tabulate coral, syringopora

Mold of crinoid stem

Bryozoan

[Rosemary]

Thank you so much! I understand what I am seeing now. :-)

[Rosemary]

The one you identified as a crinoid stem comes to a definitive point, which is why I thought it my be something other than that.

[Rockwood]

8 minutes ago, Rosemary said:

The one you identified as a crinoid stem comes to a definitive point, which is why I thought it my be something other than that.

Some crinoids don't have elaborate holdfast structures at their base. It is a good observation though. I'll be interested to see more opinions.

[ynot]

1 hour ago, Rosemary said:

The one you identified as a crinoid stem comes to a definitive point,

I think that is an optical illusion from the way it is buried in the matrix.

[Rosemary]

Thanks so much to both of you for your quick and most helpful responses.

[Rosemary]

I was wondering if these two sample are bryozoans. The first is 1/4", the second 1/2".

[Rockwood]

The second one is, but the first looks like a lumen cast from a crinoid stem.

[Rosemary]

Thx! 

[ynot]

23 hours ago, Rockwood said:

The second one is, but the first looks like a lumen cast from a crinoid stem.

Agreed.