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Crystalized Mid-Devonian Brachs


Brewcuse

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Found in the Tully Limestone, Mid-Devonian. The largest one is about the size of a US Quarter. One other contained crystalized pyrite, but the fossil disintegrated, unfortunately.

post-15361-0-76036600-1405985930_thumb.jpg

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Neat!

-Dave

__________________________________________________

Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPhee

If I'm going to drive safely, I can't do geology. - John McPhee

Check out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/

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The brachiopod was called Hypothyridina cuboides but now is called Tullypothyridina venustula.

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Thanks, Gerry for the confirmation. I found one a few months ago that was peeking out of a small rounded chunk of limestone and when I decided to break it open, I found a very round complete shell. Because of the weathering, though, I recognized nothing in Linsley.

On this trip, my girlfriend spotted a calcified shell on a large (~18" x 10" x 5") chunk and I broke it down to carry. As it turns out, it had 5 or 6 complete T. venustula, so looking at Linsley I was reasonably sure about the ID. Reading further on the web led me to Paul Sartenaer. Good stuff :)

Edited by Brewcuse
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