| Two complete crinoid crowns, called scientifically Inyocrinus strimplei, from the Lower Ordovician Al Rose Formation, Inyo County, California. Photograph courtesy a specific scientific publication. |
| Two complete crinoid crowns, called scientifically Inyocrinus strimplei, from the Lower Ordovician Al Rose Formation, Inyo County, California. Photograph courtesy a specific scientific publication. |