| Plant Stem High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Plant Impression High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Plant Stem Impression High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Small Bivavle Shell High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Small Bivavle Shell High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Unknown Bioturbation (Unknown Source) High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Unknown Bioturbation (Unknown Source) High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Outcrop with Gastropods and Bivalves High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Gastropoda Snail High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mold High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Field View High Resosution Image Location: Tucson Mountains |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resolution Photo Location: Tucson Mountains. Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resolution Photo Location: Tucson Mountains. Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood High Resolution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Scale is 6" High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Dino Bone? Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Insect Trace Fossil in Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Plant Stem Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Plant Stem (another view of above fossil) Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Stem High Resolution Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
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| Plant Material (Stem?) Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve Mollusk (cross section) and what appears to be associated trace fossils Pelecypod is about 1". Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Petrified Wood Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia Bivalve mollusk Fossil is about 3/4 inch long. Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
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| Phylum: Mollusca Class: Bivalvia (Pelecypoda) This Pelecypod is from the Amole Arkose (Bisbee equivalent) in the Tucson Mountains. Fossil is about 1/4 inch long. |  |
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