Clausen, S.; Álvaro, J. J. (2006). Skeletonized microfossils from the Lower-Middle Cambrian transition of the Cantabrian Mountains, northern Spain. Acta Palaeontologica Polonica. 51(2): 223-238.
181981
Clausen, S.; Álvaro, J. J.
2006
Skeletonized microfossils from the Lower-Middle Cambrian transition of the Cantabrian Mountains, northern Spain