| Ammonoids called scientifically Cravenoceratoides nitiloides (12 millimeters in actual diameter) on a slab of slightly metamorphosed shale from the Upper Mississippian Chainman Shale, Inyo Mountains, California. |
| Ammonoids called scientifically Cravenoceratoides nitiloides (12 millimeters in actual diameter) on a slab of slightly metamorphosed shale from the Upper Mississippian Chainman Shale, Inyo Mountains, California. |