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  1. By: Musser, Grace M., - Cracraft, Joel
    Publication info: New York, NY, American Museum of Natural History, [2019]
    Holding Institution: American Museum of Natural History Library
    Subjects: Aptornis  Birds  Birds, Fossil  Evolution  Extinct birds  Gruiformes, Fossil  Morphology  New Zealand  Phylogeny  
  2. By: Cracraft, Joel
    Publication info: New York, N.Y, American Museum of Natural History, [1971]
    Holding Institution: American Museum of Natural History Library
    Subjects: Bathornithidae  Birds, Fossil  Colorado  Eocene  Eutreptornis uintae  Evolution  Gruiformes  Gruiformes, Fossil  Miocene  Oligocene  Paleontology  Shannon County  South Dakota  Uintah County  Utah  Weld County  
  3. By: Cracraft, Joel
    Publication info: New York, N.Y American Museum of Natural History [1969]
    Holding Institution: American Museum of Natural History Library
    Subjects: Birds, Fossil  Eocene  Evolution  Geranoididae  Gruiformes  Gruiformes, Fossil  Paleontology  Wyoming