There are 4 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 10380 | S. Holland | Harding Formation Caradoc - Ordovician 4-5 - Colorado | Sweet (1954) |
| 155756 | P. Wagner | Harding Quarry, northwest of Cañon City Franklinian - Ordovician 4-5 - Colorado | Sansom et al. (1997) |
| 155772 | P. Wagner | 150 meters north of Harding Quarry, northwest of Cañon City Franklinian - Ordovician 4-5 - Colorado | Sansom et al. (1997) |
| 216978 | B. Seuss | Harding sandstone cephalopods, NE Canyon City Franklinian - Ordovician 4-5 - Colorado | Flower (1952) |