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Biostratigraphical dating of the Thornton Fossil Konservat‐Lagerstätte,Silurian, Illinois,USA |
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| Authors: | David K Loydell Gary L Mullins Peep Mnnik Donald G Mikulic Joanne Kluessendorf |
| Abstract: | |
| Keywords: | graptolites chitinozoans conodonts Silurian USA Lagerstä tten biostratigraphy |