Url,Type,Title,Publisher Place,Publisher,Date,Authors,Volume,Language,Pages https://www.biodiversitylibrary.org/page/30374503,Journal,"Bulletins of American paleontology ","Ithaca, N.Y",Paleontological Research Institution [etc.],1927,"Columbia University. College of Pharmacy. ",v.13=no.49-50 (1927),English,Page 76