Monday, June 11, 2012

Gypidula from the Keyser formation

Another new brachiopod for me from the Keyser formation is Gypidula. This comes from the same location and the Whitfieldella and Meristina I posted about before. I distinguish this from Whitfieldella by the lack of a sulcus.

Specimen #1
Pedicle valve (with small bryozoan colony)

Anterior

Brachial valve

Posterior

Profile

Specimen #2
Pedicle valve

Anterior

Brachial valve

Posterior

Profile


This specimens shown above came from the Keyser formation which is dated at the boundary of the Silurian (Pridoli stage) and Devonian (Lochkovian stage).

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