these are three specimens collected in Fillmore County , Minnesota this summer. This is Ordovician. Beyond that, these were out of fallen rock and I can not narrow it down any more.I keep looking at them, not really sure I understand what they are. Soooooooooooooo feel free to comment on them.
1. Looks crinoidal but is full of pores. So bryozoan masquerading as a crinoid cup? Or bryozoan covered crinoid cup?
2. All I can think of is 2 brachiopod shells in apposition, but the linear structure in the middle confuses me. The hinge??