| Here is an orthocone nautiloid cephalopod, called Bactrites sp. (the "darning needle" cephalopod) from the Upper Mississippian Chainman Shale, Inyo County, California. |
| Here is an orthocone nautiloid cephalopod, called Bactrites sp. (the "darning needle" cephalopod) from the Upper Mississippian Chainman Shale, Inyo County, California. |