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Showing results for tags 'mifflintown'.
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Found this piece of float in a place where there is a mix of native scree and fill from God knows where. Due to circumstances I was not able to climb the slope to try to find a source layer. Exposed bedrock I think is Mifflintown Formation. The slab of hash shows three reasonably clear specimens without any prep. Each has a ring with triangle segments pointing toward the center, and one pair of dominant rays running from the center to the perimeter. Someone on the FB group pabe suggested "Cyclosystoid" which I had never heard of, and there is only a little available on google that isn't paywalled. Eventually I'll focus on the other species in the hash to try to verify its Mifflintown and not trucked in fill from who knows where. What do you thiink? (PS thanks for the lead so far, Greg)
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- crinoid
- cyclosystoid
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(and 3 more)
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