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Jack Kallmeyer posted an update in the group
Eclectic Echinodermata 5 years, 1 month ago 5 years, 1 month ago5 years, 1 month agoHere’s a crinoid collected by a Dry Dredger years ago. It is now in my collection. It is Eucalyptocrinites elrodi from the Silurian Waldron Shale of Indiana. This is one of the less common species in this Formation. It is exceptional because the arms are preserved in place. Usually the arms and the upper part of the cup are missing. Scale bar is 10mm.
An excellent fossil! I was working in the Yale Peabody Collections several years ago and was rummaging around looking for hidden blastoids (as one does) and found a Eucalyptocrinites identified as a blastoid! I can see the confusion, the arms being folded up so neatly look similar to the blastoid ambulacra. The way these preserve is really spectacular.