Field Photos From the Sonoita Expedition 4/2001
| Phylum: Brachiopoda Class: Articulata Order: Spiriferidea Suborder: Athyrididina Genus: CompositaLocation: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp |  |
| Phylum: Brachiopoda Mixed Broken Shells Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp |  |
| Identification pending Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp |  |
| Phylum: Brachiopoda Class: Articulata Order: Strophomenidina Suborder: Productid Location: Near Sonoita Az. Age: Pennsylvanian/Permian Formation: Earp |  |