ammonites
McKay Reservoir (Neogene of the United States)

Also known as SDSM V802; UCMP V-74163; UO 2222; UWBM C0128

Where: Umatilla County, Oregon (45.5° N, 118.8° W: paleocoordinates 45.4° N, 116.1° W)

• coordinate based on political unit

When: McKay Formation, Hemphillian (10.3 - 4.9 Ma)

Environment/lithology: pond; tuffaceous sandstone

Size classes: macrofossils, mesofossils

Collected by J. A. Shotwell, G. Shotwell in 1950; reposited in the SDSM

Collection methods: quarrying, surface (float)

Primary reference: J. A. Shotwell. 1956. Geological Society America Bulletin 67 [J. Alroy/J. Alroy] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 18970: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)