Anonymous (1982): Site 491. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Lee, Mariana (editor), Watkins, Joel S., Moore, Casey J., Bachman, Steven B., Beghtel, Floyd, Butt, Arif, Didyk, Borys M., Dmitriev, Yuri I., Leggett, Jeremy K., Lundberg, Neil F., McMillen, Kenneth J., Niitsuma, Nobuaki, Rodriguez-Torres, Rafael, Shephard, Les E., Shipley, Thomas H., Stephan, Jean-Francois, Stradner, Herbert, Leg 66 of the cruises of the drilling vessel Glomar Challenger; Mazatlan, Mexico to Manzanillo, Mexico; March-May, 1979, 66, 219-287, georefid:1982-039595