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.: E. H. Vokes. 1970. Cenozoic Muricidae of the Western Atlantic region. Part V - Pterynotus and Poirieria. Tulane Studies in Geology and Paleontology 8(1):1-50
Ref.: F. E. Turner. 1938. Stratigraphy and Mollusca of the Eocene of western Oregon. Geological Society of America Special Paper (10):1-130