Bonehunter Posted March 23, 2021 Share Posted March 23, 2021 So......this stumps me on four levels (not a hard thing to do ) One- it is "sunken" into the shale (Stark Shale between Winterset and Bethany Falls limestone (Pennsylvania); Two-it is cracked ( at the 7th segment/ridge), Three- how do I get this out? and Four- what is it? It does not appear to be a crinoid is my best guess! I sealed it with a very dilute solution of butvar but not sure next steps. Thanks all!! Bone Link to comment Share on other sites More sharing options...
Norki Posted March 23, 2021 Share Posted March 23, 2021 Looks to me like an Archimedes screw or some other similar bryozoan. 1 Link to comment Share on other sites More sharing options...
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