Spongioradsia
Spongioradsia is an extinct genus of polyplacophoran molluscs. Spongioradsia became extinct during the Oligocene period.[1]
| Spongioradsia Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Polyplacophora |
| Order: | Chitonida |
| Family: | Ischnochitonidae |
| Subfamily: | Lepidochitoninae |
| Genus: | †Spongioradsia Pilsbry, 1894 |
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