Feild Photos From the Horquilla Formation
| Field View of Horquilla Limestone High Resolution Image |  |
| Field View of Horquilla Limestone High Resolution Image |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Spiriferid Valve with hinge Age: Pennsylvanian Formation: Horquilla Limestone High Resosution Image |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Spiriferid Brachiopod Age: Pennsylvanian Formation: Horquilla Limestone High Resosution Image |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Spiriferid Brachiopod Age: Pennsylvanian Formation: Horquilla Limestone High Resosution Image |  |
| Phylum: Bryozoa Branching Bryozoa Age: Pennsylvanian Formation: Horquilla Limestone High Resosution Image |  |
| Phylum: Cnidaria Class: Anthozoa Subclass: Zoantharia Order: Rugosa Horn Coral High Resolution Image Location: Tucson Mountains. Age: Pennsylvanian Formation: Horquilla Limstone |  |
| Phylum: Mollusca Class: Gastropoda Quartz fill GastropodLocation: Near Sonoita AZ. Age: Pennsylvanian Formation: Horquilla Limestone High Resolution Image |  |
| Phylum: Mollusca Class: Gastropoda Quartz fill GastropodLocation: Near Sonoita AZ. Age: Pennsylvanian Formation: Horquilla Limestone High Resolution Image |  |
| Phylum: Mollusca Class: Gastropoda Quartz fill GastropodLocation: Near Sonoita AZ. Age: Pennsylvanian Formation: Horquilla Limestone High Resolution Image |  |
| Phylum: Mollusca Class: Gastropoda Quartz fill GastropodLocation: Near Sonoita AZ. Age: Pennsylvanian Formation: Horquilla Limestone High Resolution Image |  |
| Phylum: Echinodermata Crinoid stem Location: Near Sonoita Az. Age: Pennsylvanian Formation:Horquilla Limestone |  |
| 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 |  |