Turner, C.E.; Peterson, F. (1999). „Biostratigraphy of dinosaurs in the Upper Jurassic Morrison Formation of the Western Interior, USA”. Ур.: Gillete, David D. Vertebrate Paleontology in Utah. Miscellaneous Publication 99-1. Salt Lake City, Utah: Utah Geological Survey. стр. 77–114. ISBN978-1-55791-634-1.
Chenoweth, W.L. (1987). „The Riggs Hill and Dinosaur Hill sites, Mesa County, Colorado”. Ур.: Averett, Walter R. Paleontology and Geology of the Dinosaur Triangle. Grand Junction, Colorado: Museum of Western Colorado. стр. 97—100. LCCN93247073. OCLC680488874.
Chenoweth, W.L. (1987). „The Riggs Hill and Dinosaur Hill sites, Mesa County, Colorado”. Ур.: Averett, Walter R. Paleontology and Geology of the Dinosaur Triangle. Grand Junction, Colorado: Museum of Western Colorado. стр. 97—100. LCCN93247073. OCLC680488874.