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Showing results for tags 'birdsong shale'.
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I have posted examples of this fossil before in ID, but this is a newly found specimen that is more complete, but still missing the same area that all my specimens are missing. Photos of the other examples and the resulting conversations can be found in the previous post in October. This example shows what appears to be hinge teeth, a muscle scar and the general form. The shell in all examples thins dramatically towards the muscle scar and the origin of the growth lines, and the missing features are always just past this point away from the margin side.
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- birdsong shale
- bivalve
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This is from the Devonian Birdsong shale in Parsons, TN USA. It is a solid spine resting across a Dalmanites retusus tail molt. I can’t think of anything with this slender taper and length other than a rare-for-Tennessee, Dicranurus spine. Is this a correct assumption?
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- birdsong shale
- devonian
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