[17120] North American, Strata: Upper Jurassic, Period: 32642, Rec 1987

[Rec № 1987] Stratigraphy and depositional environments of the Upper Jurassic Morrison Formation near Capitol Reef National Park, Utah

Petersen, L. M. & Roylance, M. M.
Masters thesis, Brigham Young University, 1982, « Missing Vol »