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Showing results for tags 'mifflintown formation'.
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From the album: Silurian
Unidentified Nautiloid Orthocones Late Silurian Mifflintown Formation Sam's Club Altoona, PA.-
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From the album: Silurian
Homotoma sp. Gastropod Internal Mold Late Silurian Mifflintown Formation Bellwood, PA.-
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From the album: Silurian
Brachiopod Matrix Late Silurian Mifflintown Formation Sam's Club Altoona, PA.-
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From the album: Silurian
Brachiopod Matrix Late Silurian Mifflintown Formation Bellwood, PA.-
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From the album: Silurian
Whitfieldella nitida Athyrid Brachiopods Late Silurian Mifflintown Formation Bellwood, PA.-
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From the album: Silurian
1.) Homeospira marylandica 2.) Camarotoechia neglecta 3.) Sterhynchus andrewsi Rhynchonellid Brachiopods Late Silurian Mifflintown Formation Sam's Club Altoona, PA. Thanks to Shamalama Dave for ID help-
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Central PA, Mifflintown-Bloomsburg (undividied) Block collected from roadsite float. Its pretty variable, with a flaky/fissile layers alternating with slightly more cohesive ones. Lots of broken brachiopod bits. For an experiment to I dropped an unremarkable flake the size of a large coin in some vinegar and let it soak for a day. The flake had a couple brachiopod bits and I wanted to see if they would fall free or dissolve in place. The brachiopds disappeared and I was left with this (see pics). Of course I got really excited and thought I had an early fish spine, but now I think I dissolved a crinoid stem and what we see is the matrix that filled in the soft bits. What do you think? Total length is 3/4"
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