| Phylum: Mollusca Class: Gastropoda Gastropod (Snail) High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Mollusca Class: Gastropoda Gastropod (Snail) High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Mollusca Class: Gastropoda Gastropod (Snail) High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Mollusca Class: Gastropoda Gastropod (Snail) High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Ripple Marks High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Assorted Packstone High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Assorted Debris High Resosution Image Location: Tucson Mountains Age: Early Cretaceous Formation: Amole Arkose |  |