Where: Nevada and Utah (40.7° N, 114.1° W: paleocoordinates 14.6° N, 34.8° W)
• coordinate based on political unit
• basin-level geographic resolution
When: Permian (298.9 - 252.3 Ma)
• Bedding in the sediments is of thin clay and silt layers and shell bands, and large scale sedimentary structures are normally lacking.
Environment/lithology: shelly/skeletal, argillaceous, calcareous
Collection methods: Ostracods are also included in this list, but are not counted.
Primary reference: T. E. Yancey and C.H. Stevens. 1981. Early Permian fossil communities in northeastern Nevada and northwestern Utah. Communitites of the Past 243-269 [T. Olszewski/M. Gibson/T. Olszewski] more details
PaleoDB collection 10423: authorized by Tom Olszewski, entered by Melissa Gibson on 16.04.2001