Monday, March 10, 2014

Subtransnema sp. brachiopod from Germany

Subtransnema sp. brachiopods remind me of Douvillina sp. brachiopods. They both look similar in shape and have thin radial lines on the surface of the pedicle valve. The specimen below is from the Hallert member of the Ahbach Formation (Devonian, Givetian stage) near Blankenheim, Germany.

Pedicle valve
Anterior
Brachial valve
Posterior
Profile

For comparison purposes I've blogged about Douvillina interstrialis from Poland, Douvillina arcuata from Iowa and Douvillina inaequistriata from New York and Ontario.

Thanks go out to Nils for sending me this specimen.

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