Island Mesa Tank, Yavapai County (Devonian of the United States)
Where: Yavapai County, Arizona (34.1° N, 111.9° W: paleocoordinates 27.1° S, 57.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Jerome Member (Martin Formation), Frasnian (383.7 - 376.1 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: gray, argillaceous limestone
• 8’ of massive arenaceous purplish-gray limestone ~125’ below Redwall Ls. (Mississippian).
Size class: macrofossils
Collection methods: University of Arizona
Primary reference: A. Stoyanow. 1948. Molluscan faunule from Devonian Island Mesa Beds, Arizona. Journal of Paleontology 22(6):783-791 [P. Wagner/P. Wagner/J. Alroy] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 50029: authorized by Pete Wagner, entered by Pete Wagner on 04.05.2005