• Title: Ptychodus mortoni Agassiz, 1843
  • Creator: Mr. George B. Pearce
  • Date Created: 1936
  • Location Created: Graham County, Kansas, United States
  • Subject Keywords: Paleogeneral, Chondrichthyes
  • Original Source: See more on the Smithsonian National Museum of Natural History website
  • Taxonomy: Animalia Chordata Vertebrata Pisces Chondrichthyes Elasmobranchii Hybodontiformes Ptychodontidae

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