| Phylum: Brachiopoda Brachiopod Age: Mid to late Permian Formation: Concha |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Tucson Mountains. Age: Mid to late Permian Formation: Concha Limestone |  |
| Phylum: Brachiopoda Brachiopod Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita Age: Mid to late Permian Formation: Concha The Pedicle opening can be seen. |  |
| Phylum: Brachiopoda Class: Articulata Order: Rhynchonellida Location: Tucson Mountains Age: Mid to late Permian Formation: Concha |  |
| Phylum: Brachiopoda Class: Articulata Order: Rhynchonellida Location: Tucson Mountains 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: Bryozoa Class: Stenolaemata Order: Fenestrata Bryozoa Location: Tucson Mountains. Age: Mid to late Permian Formation: Concha |  |