Brachial valve
The only other fossil that I have from Belgium is Cyrtospirifer verneuilli.
Saturday, June 13, 2015
Ryocarhynchus tumidus brachiopod from Belgium
From the Ardennes region of Belgium comes this Ryocarhynchus tumidus brachiopod fossil. It was found in the Matagne Limestone (Fransian stage, Devonian) near the town of Robechies. The shell is round and wider than it is long. The brachial valve is very convex while the pedicle valve is slightly convex at the umbo and grades down to slightly concave in the sulcus. A single, gently dipping sulcus is present but is most pronounced at the anterior margin.
Brachial valve
Anterior
Pedicle valve
Posterior
Profile
The only other fossil that I have from Belgium is Cyrtospirifer verneuilli.
Brachial valve
The only other fossil that I have from Belgium is Cyrtospirifer verneuilli.
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