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Dan Zimmerman joined the group What is it? 4 years, 9 months ago
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Dan Zimmerman joined the group Shocking Shark Teeth 4 years, 9 months ago
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Dan Zimmerman joined the group Paleo Pics 4 years, 9 months ago
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Dan Zimmerman joined the group Astonishing Arthropods 4 years, 9 months ago
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Dan Zimmerman joined the group Eclectic Echinodermata 4 years, 9 months ago
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Dan Zimmerman joined the group Florida’s Fossils 4 years, 9 months ago
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Dan Zimmerman joined the group Bookworms 5 years, 3 months ago
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Dan Zimmerman joined the group Cincinnatian Collectors 5 years, 6 months ago
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Dan Zimmerman and George W. Powell Jr are now friends 6 years, 2 months ago
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Jack Kallmeyer and Dan Zimmerman are now friends 7 years, 4 months ago
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Dan Zimmerman's profile was updated 7 years, 7 months ago
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Dan Zimmerman's profile was updated 7 years, 8 months ago
7 years, 8 months ago7 years, 8 months ago