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Showing results for tags 'coral? hyolith?'.
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My last excursion to the Decorah Shale was meant to be a collection of specimens for @Tidgy's Dad, who helps me with identifications in this material. Unfortunately, the postage to Morocco has gone up exponentially (hundreds of dollars for a SMALL package) so that he will go empty handed. Here are a few things I am grappling with from that trip and hope to receive some incite from those more knowledgeable than me (so anyone!!). 1. This seems to be a cross section of a coral 3 cm in diameter. The corals frequent to the Decorah Shale are small solitary rugosa coral, having a rust color to them. Have looked for other types of coral and come up empty handed. 2. A hash plate full of crinoidal material. What are the linear objects scattered throughout the plate? Hyoliths or crinoidal? I guess while you are looking at this, any opinions on the owner to the genial spine (lower left)?