| Calyptaulax callicephalus Verulam Fm. Gamebridge, Ontario, Canada Size: The trilobite is about 1.2 cm. Price: $25 US ID number: fs684 | 
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| Calyptaulax callicephalus Verulam Fm. Gamebridge, Ontario, Canada Size: The trilobite is about 1.2 cm. Price: $25 US ID number: fs684 |
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