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| View Original: | Crinoid stem replaced with marcasite.JPG (701x590) | |||
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| Keywords: Crinoid stem replaced with marcasite.JPG en Crinoid stem replaced by marcasite in a siderite concretion; Lower Carboniferous 2013-12-13 14 10 05 own Wilson44691 cc-zero Uploaded with UploadWizard Marcasite Diagenetic structures Crinoidea | ||||
