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Michigan brachiopod question

Bill Hoddson

By Bill Hoddson
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Bill Hoddson Member

Bill Hoddson

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I have a piece of limestone found in a gravel pit. It contains two brachiopods I'm having a hard time identifying.  Both appear to be the same species, just differing states of preservation.  The larger is about 3/4" wide.

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connorp Regular Member

connorp

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As it was found in a gravel pit it may have been glacially transported, and thus it will likely be impossible to determine an exact ID. @Tidgy's Dad might be able to narrow the taxonomy a little.

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Bill Hoddson Member

Bill Hoddson

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Without being able to look at the ventral valve  (yet) it's hard to tell if it's bi-convex, convex-planar, or convex-concave.

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Fossildude19 Regular Member

Fossildude19

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Something like Atrypa, or Pseudoatrypa. 

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