Hi, @chris-watson – maybe you can use this link to narrow down the classification: https://pennsylvanianatlas.org/phyla/brachiopoda-articulata/

Hi @chris-Watson, would you like to improve the quality of this specimen for the Emuseum? I can walk you through the steps. The image that you posted resembles a crinoid columnal. Do you have any pictures from other angles or with a scale bar that you could add?