Feild Photos From the Horquilla Formation
| Phylum: Echinodermata Crinoid stem Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Order: Tabulata Family: Syringoporidae Genus: Syringopora Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone High Resolution Image |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone High Resolution Image |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone High Resolution Image |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone High Resolution Image |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone High Resolution Image |  |
| Phylum: Mollusca Class: Gastropoda Unknown GastropodLocation: Near Sonoita AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Brachiopoda Brachiopod Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Protozoa Order: Foraminiferida Suborder: Fusulinina Family: Fusulinidae Fusulinid Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Protozoa Order: Foraminiferida Suborder: Fusulinina Family: Fusulinidae Fusulinid Cross Section Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limstone |  |
| Phylum: Echinodermata Echiniod Plate Location: Near Vail Az. Age: Pennsylvanian/Permian Formation: Horquilla Limestone |  |
| Phylum: Mollusca Class: Gastropoda Genus: Donaldina swallowiana Thanks to Dr. John R. Anderson, II for the identifications here Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Mollusca Class: Gastropoda Genus: Donaldina stevensana Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Mollusca Class: Gastropoda Genus: Orthonema amissidecoris Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Mollusca Class: Gastropoda Genus: Streptacis meeki Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Protozoa Order: Foraminiferida Suborder: Fusulinina Family: Fusulinidae Fusulinid Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Brachiopoda Class: Articulata Brachiopod Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Protozoa Order: Foraminiferida Suborder: Fusulinina Family: Fusulinidae Fusulinid Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: Composita Age: Age: Pennsylvanian? Formation: Horquilla Limestone? |  |
| Phylum: Echinodermata Crinoid stem Location: Near Sonoita Az. Age: Pennsylvanian? Formation: Horquilla Limestone? |  |
| Phylum: Protozoa Order: Foraminiferida Suborder: Fusulinina Family: Fusulinidae Fusulinid with Brachiopod Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Brachiopoda Brachiopod Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Brachiopoda Brachiopod Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Sea Urchin Spines Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Sea Urchin Plate and Spines Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Mollusca Class: Gastropoda Sub-class: Prosobranchia Order: Archaeogastropoda Genus: Straparollus Snail Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla Limestone Fossil diameter is about 4 inches |  |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spine Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla In places, this formation appears to made of Sea Urchin Spines |  |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spines Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spines Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Large Urchin Spine Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Brachiopod Strophomenide and Chaetetes Coral (A marker species for the Horquilla Limestone) Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spines Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Subphylum: Echinozoa Class: Echinoidea Sea Urchin Spines Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Crinoid Stem Cross Section with Urchin Spine Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Class: Crinoidea Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stems Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Mollusca Class: Gastropoda Sub-class: Prosobranchia Order: Archaeogastropoda Genus: Straparollus Snail Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Mollusca Class: Gastropoda Sub-class: Prosobranchia Order: Archaeogastropoda Genus: Straparollus Snail Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Rugose Coral Location: Near Sonoita Az. Age: Pennsylvanian Formation: Horquilla |  |