| Collection | Reference | Stratigraphic Name | Comments | Lithology | Age |
|---|
| 41433, Antelope Canyon Sect., Comet Shale Mb., NV - Sundberg and McCollum 2000 | Sundberg F. A., McCollum L. B. (2000) | Pioche Shale - Comet Shale | Basal 70cm of section | "limestone" | 513 - 501 Ma
Cambrian |
| 41434, Antelope Canyon Sect., Comet Shale Mb., NV - Sundberg and McCollum 2000 | Sundberg F. A., McCollum L. B. (2000) | Pioche Shale - Comet Shale | 3.2m above base of section and encompassing a 70cm thick interval. | "limestone" | 513 - 501 Ma
Cambrian |
| 41435, Antelope Canyon Sect., Comet Shale Mb., NV- Sundberg and McCollum 2000 | Sundberg F. A., McCollum L. B. (2000) | Pioche Shale - Comet Shale | 8.6m above base of section and encompassing a 40cm thick interval. | "limestone" | 513 - 501 Ma
Cambrian |
| USNM 41761, Susan Duster Limestone Mbr, Antelope Canyon | Sundberg F. A., McCollum L.B. (2003) | Pioche Shale - Susan Duster Limestone | Basal 0.7 m of the Susan Duster Limestone Member. Within Amecephalus arrojosensis Biozone. Probably correlates to Delamaran stage. Early Middle Cambrian in age. | "limestone" | 513 - 501 Ma
Cambrian |
| USNM 41762, Susan Duster Limestone Mbr, Antelope Canyon | Sundberg F. A., McCollum L.B. (2003) | Pioche Shale - Susan Duster Limestone | From 1-5 m above the base of the Susan Duster Limestone Member. Within Poliella denticulata Biozone. Probably correlates to Delamaran stage. Early Middle Cambrian in age. | "limestone" | 513 - 501 Ma
Cambrian |
