Babin, C.; Gutierrez-Marco, J. C. (1991). Middle Ordovician bivalves from Spain and their phyletic and palaeogeographic significance. Palaeontology. 34(1): 109-147.
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Babin, C.; Gutierrez-Marco, J. C.
1991
Middle Ordovician bivalves from Spain and their phyletic and palaeogeographic significance