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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Kummel, Bernhard - Sakagami, Sumio,
    Type: Article
    In: Breviora
    Volume: 126
    Date: 1960
    Page Range: 1--11
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-
  2. By: Sakagami, Sumio, - Pillevuit, Alain
    Type: Article
    In: Paleontological research
    Volume: 1
    Date: 1997
    Page Range: 200--224
    Publication Info: Tokyo, Japan, Palaeontological Society of Japan, 1997-
  3. By: Nishizawa, Yasuo - Sakagami, Sumio,
    Type: Article
    In: Paleontological research
    Volume: 1
    Date: 1997
    Page Range: 267--273
    Publication Info: Tokyo, Japan, Palaeontological Society of Japan, 1997-