| Isotelus gigas Verulam Fm. Gamebridge, Ontario, Canada Size: The trilobite is about 2 cm. across the cephalon Price: $25 US ID number: f1536 | 
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| Isotelus gigas Verulam Fm. Gamebridge, Ontario, Canada Size: The trilobite is about 2 cm. across the cephalon Price: $25 US ID number: f1536 |
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