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| N° | Description | Genus | Species | Classification | Fossilization | Formation | Origin |
| 1 | sponge | Hallirhoa | costata | Sponges | silicification | clayey-siliceous formations | Limeray |
| 2 | sponge | Hallirhoa | costata ? | Sponges | silicification | clayey-siliceous formations | Montrichard |
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