| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Tucson Mountains. Age: Mid to late Permian Formation: Rain Valley |  |
| Phylum: Brachiopoda Class: Articulata Order: Rhynchonellida Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda (Unidentified) Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Order: Rhynchonellida (Magnified) Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda (Unidentified) Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid The concavo-convex shell symmetry can be seen here. In cross section these look like crescent moons. Location: Tucson Mountains. Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Location: Tucson Mountains. Age: Mid to late Permian Formation: Rain Valley |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Tucson Mountains. Age: Mid to late Permian Formation: Rain Valley |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stems (poorly preserved) Location: Tucson Mountains. Age: Mid to late Permian Formation: Rain Valley |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita Age: Mid to late Permian Formation: Concha |  |