Also known as Originally Gateway Canyon Member, Muav Fm., western Grand Canyon, AZ
Where: Arizona (36.1° N, 112.1° W: paleocoordinates 5.0° S, 94.9° W)
• coordinate based on political unit
When: Bolaspidella trilobite zone, Gateway Canyon Member (Muav Limestone Formation), Marjumian (504.5 - 497.0 Ma)
• * "lower Bolaspidella zone or upper B-E zone"
•
•Was St. David; should be Topazan.
• member-level stratigraphic resolution
Environment/lithology: offshore; limestone
Primary reference: C. E. Resser. 1945. Cambrian history of the Grand Canyon region. Part II. Cambrian fossils of the Grand Canyon. Publications of the Carnegie Institution 563:171-220 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 158687: authorized by Pete Wagner, entered by Pete Wagner on 21.07.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Solenopleurella porcata trilobite | |
Anoria sp. Walcott 1924 trilobite |