| Isorophusella incondita Rafinesquina alternata Verulam Fm. Gamebridge, Ontario, Canada Size: About 0.6 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: $25 US ID number: f1494 | 
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