Recent Updates
| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Petrified Wood Age: Cretaceous Formation: Fort Crittenden |  |
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| Leaves Age: Cretaceous Formation: Fort Crittenden |  |
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| Bone Fragment? Age: Cretaceous Formation: Fort Crittenden |  |
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| Phylum: Brachiopoda Brachiopod Age: Mid to late Permian Formation: Concha |  |
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| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Tucson Mountains. Age: Mid to late Permian Formation: Concha Limestone |  |
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| Phylum: Brachiopoda Brachiopod Age: Mid to late Permian Formation: Concha |  |
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| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita Age: Mid to late Permian Formation: Concha |  |
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| Deer High Resolution |  |
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| Cactus Flower |  |
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| Wood Pecker |  |
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| Bird |  |
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| Lizard |  |
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| Lizard |  |
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| Blue Jay |  |
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| Butterfly |  |
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| Spider |  |
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