| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita with Horn Coral Age: Mid to late Permian Formation: Concha |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Horn Coral Location: Tucson Mountains. Age: Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Order: Rhynchonellida Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Braciopod (unidentified) Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Stem High Resolution Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
| Plant Material (Stem?) Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Coquina Mixed Broken Shells Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
| Petrified Wood Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Mollusca Class: Bivalvia (Pelecypoda) Bivalve mollusk (cross section) and what appears to be associated trace fossils Pelecypod is about 1". Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
| Petrified Wood Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |
| Phylum: Mollusca Class: Bivalvia Bivalve mollusk Fossil is about 3/4 inch long. Location: Near Tucson Az. Age: Early Cretaceous Formation: Amole Arkose |  |