I won an auction on E-bay which included this brachiopod with no locality info except "France". It's really cool looking with an exaggerated sulcus that reminds me of the Paleozoic brachiopod genus Pugnax. I queried some collectors on Facebook and one came back with a tentative ID of Homeorhynchia sp.
A little searching on the Google yielded a couple of examples of the genus:
This page with some lower Jurassic brachiopods has a Homeorhynchia cynocephala shown on it that looks very close to what I have.
Member Vencio has a specimen of Homeorhynchia meridionalis pictured in his gallery on the Fossil Forum.