| Phylum: Brachiopoda Class: Articulata Brachiopod With Sea Urchin Spine/Plate Location: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Brachiopod Location: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Echinoid Plate Location: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spine Location: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spine Location: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin SpineLocation: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin SpineLocation: Near Vail AZ. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stems Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stems Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Section Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Bryozoa Bryozoa Location: Near Sonoita Az. Age: Pennsylvanian Formation: Concha Limestone | ![]() |
| Phylum: Bryozoa Bryozoa Location: Near Sonoita Az. Age: Pennsylvanian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Brachiopod Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Various Echinoids Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Various Echinoids Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Various Echinoids Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Sea Urchin Spine Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita with Horn Coral 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: 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 | ![]() |
| 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 | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Unknown Fossil diameter is about 1.5 inches | ![]() |
| Phylum: Bryozoa Class: Stenolaemata Order: Fenestrata Bryozoa Location: Near Sonoita Az. Age: Pennsylvanian Formation: Unknown | ![]() |
| Phylum: Brachiopoda Brachiopod Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Echinoid Spine Outer Covering Preserved Magnified View Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Echinoid Spine Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Echinoid Spine Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Echinoid Spine through Plate Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp Fossil diameter is about 1.5 inches | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem cross section Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Missippian Formation: Escabrosa Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp Fossil diameter is about 1.5 inches | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp Fossil diameter is about 1.5 inches | ![]() |
| Phylum: Mollusca Class: Gastropoda Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp Fossil diameter is about 1.5 inches | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Internal Mold Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Internal Mold Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Echinoid Spine Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Bryozoa Class: Stenolaemata Order: Fenestrata Bryozoa Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Bryozoa Bryozoa Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Rhynchonellida Location: Tucson Mountains Age: Mid to late Permian Formation: Concha | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Tucson Mountains. Age: Mid to late Permian Formation: Rain Valley | ![]() |
| 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 Order: Spiriferidea Suborder: Athyrididina Genus: Composita Age: Mid to late Permian Formation: Concha | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Section Maginified View Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Section Maginified View Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Section with Echinoid Spines Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Nautaloid? Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Internal Mold Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Mollusca Class: Gastropoda Snail Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Large Crinoid Section Maginified View Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stems Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Genus: Dictyoclostus sp. Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Genus: Dictyoclostus sp. Location: Near Sonoita Az. Age: Permian Formation: Concha Limestone | ![]() |