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Psiloceras johnstoni (Sowerby, 1824)
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Products description
| This ammonite is a white specimen of the species Psiloceras johnstoni. |
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| | Location: | Watchet, Somerset, England | |
| Ammonite diameter: | about 30 mm |
| Age: | LowerJurasic , Lias alpha, (about 185 Mill. Years) |