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Showing results for tags 'silica formation'.
Found 4 results
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Identification based on page 63 of "Ostracods of the Middle Devonian Silica Formation" by Kesling and Chilman (1978). This was a float sample
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Identification based page 54 of "Ostracods of the Middle Devonian Silica Formation" by Kesling and Chilman (1978)
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Identified based on key table on page 70 of "Ostracods of the Middle Devonian Silica Formation" by Kesling and Chilman (1978).
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I found these fossils while picking through a Middle Devonian sample this past Fall. I think that the upper item may be a crinoid holdfast. The lower item is a mystery (part of a starfish or urchin?). I'll try to get determine the number of sides on the lower item - as it may be helpful for identification. The larger divisions on the scale represent a 1/16" Any thoughts or ideas? Acryzona
