Sphaerochitina ricardi
- Citations total:
- 2
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original | Gedinnian | Eifelian | Spain | Diez,M.D.C.R. et al. Chitinozoan zonation of the La Vid Formation (Gedinnian to Eifelian) in the Provinces of Leon and Oviedo, Spain. | 1977 |
original | Early Emsian | Early Eifelian | Spain | Diez,M.D.C.R. et al. Iberian chitinozoans. 2. Lower Devonian forms (La Vid Shales and equivalents). | 1978 |