This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.
Corresponding author (Name, Year)
Ref.: W. A. Cobban. 1983. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior. United States Geological Survey Professional Paper 1253:1-25
P. L. Sealey, 2011 - Upper Cretaceous (Turonian) ammonites from the Carlile Member and reference area of the Juana Lopez Member of the Mancos Shale, eastern side of the San Juan Basin, La Ventana, Sandoval County, New Mexico - New Mexico Museum of Natural History and Science Bulletin (53), 370-379 (journal article, English)
W. A. Cobban, 1983 - Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior - United States Geological Survey Professional Paper (1253), 1-25 (serial monograph, English)