Renz, Otto (1972): Aptychi (Ammonoidea) from the upper Jurassic and lower Cretaceous of the Western North Atlantic (Site 105, Leg 11, DSDP). Texas A & M University, Ocean Drilling Program, College Station, TX, United States, In: Initial reports of the Deep Sea Drilling Project covering Leg 11 of the cruises of the drilling vessel "Glomar Challenger", Miami, Florida to Hoboken, New Jersey, April-June, 1970, 11, 607-620, georefid:1972-085123