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Showing results for tags 'lower cretaceous north texas'.
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I collected with @ rwise in the Goodland Limestone, Lower Cretaceous of Cooke County Texas today. I found this semi-circular fossil that may be a burrow. Looking closer at the large end there was a dotted line, lower left. Closer... Closer... Closer... That's a mm scale and this is the best my camera will do close-in... Any ideas?