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Posts treating: "distinctive cup shape"

Sunday, 30 August 2015

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Agassizocrinus Floating Crinoid Calyx Fossil

Louisville Area Fossils [2015-08-30 00:14:00]

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Carboniferous; US

These pictures are what appear to be dorsal calyx cups from an Agassizocrinus fossil crinoid. The fossils were found in Glen Dean Member of Grayson County, Kentucky, USA. They date to Mississippian Period. I have been wanting to find this type of fossil for a while and finally got a chance to collect some. They are small about the size of a marble and are in a distinctive cup shape