| A trilobite from the Middle Cambrian Emigrant Formation, Esmeralda County, Nevada. Wujiajiania sutherlandi. Image courtesy Richie Kurkewicz, who collected and photographed the specimen. |
| A trilobite from the Middle Cambrian Emigrant Formation, Esmeralda County, Nevada. Wujiajiania sutherlandi. Image courtesy Richie Kurkewicz, who collected and photographed the specimen. |