Thursday, June 6, 2013

Spinatrypa aspera brachiopod from Poland

I immediately recognized these next shells as a Spinatrypa sp. when I first received them and further research points to S. aspera. They come from the Skaly beds (Devonian,  Eifelian to Givetian stages) near Kielce, Poland. Compare these to the specimens I've found in the Windom Shale or that come from the Lime Creek Formation.

Specimen #1
Brachial valve
Anterior
Pedicle valve
Posterior
Profile

Specimen #2
Brachial valve
Anterior
Pedicle valve
Posterior
Profile

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