| Filed View of Horquilla Limestone South of Collosal Cave exposed along the Arizona Trail. High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata/Protozoa Class: Crinoidea Crinoid Stem with Fusulinids High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata/Protozoa Class: Crinoidea Crinoid Stem with Fusulinids High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Debris High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata Class: Crinoidea Crinoid Stem High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Echinodermata/Protozoa Class: Crinoidea Crinoid Stem with Fusulinids High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Protozoa Order: Foraminiferida Suborder: Fusulinina Family: Fusulinidae Fusulinid High Resolution Photo Location: Near Vail AZ. Age: Pennsylvanian Formation: Horquilla Limestone |  |
| Phylum: Mollusca/Protozoa Class: Gastropoda Snail with Fusulinids High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limstone |  |
| Phylum: Mollusca Class: Gastropoda Snail High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limstone |  |
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Spiriferid Brachiopod High Resolution Photo Location: Near Vail Arizona Age: Pennsylvanian Formation: Horquilla Limestone |  |