| Isorophusella incondita Rafinesquina alternata Verulam Fm. Gamebridge, Ontario, Canada Size: About 0.6, 0.7 cm. These come from a layer in the quarry (Jim Dick Quarry) that is long exhausted. It was a layer exposed in the 1970-80's. That layer was never exposed again. Price: $35 US ID number: f1491 | 
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