| Petrified Wood High Resolution Photo Location: Tucson Mountains. Age: Early Cretaceous Formation: Amole Arkose |  |
| Petrified Wood High Resolution Photo Location: Tucson Mountains. Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Gastropoda Unknown Gastropod Location: Tucson Mountains Age: Mid to late Permian Formation: Rain Valley |  |
| Phylum: Gastropoda Unknown Gastropod Location: Tucson Mountains Age: Mid to late Permian Formation: Rain Valley |  |