• Thumbnail for Agathaumas
    also suggested that his taxa Agathaumas, Monoclonius, and Dysganus could be Hadrosaurids. Cope did not assign Agathaumas into the group now recognized...
    13 KB (1,382 words) - 17:26, 16 August 2024
  • Thumbnail for Triceratops
    two taxa, Agathaumas sylvestris and Polyonax mortuarius, in 1872 and 1874, respectively, by Marsh's archrival Edward Drinker Cope. Agathaumas was named...
    95 KB (9,993 words) - 16:19, 27 August 2024
  • Thumbnail for Monoclonius
    Monoclonius was Edward Drinker Cope's third named ceratopsian, after Agathaumas and Polyonax. Several fossils were found by Cope, assisted by a young...
    29 KB (3,665 words) - 22:30, 22 August 2024
  • Thumbnail for Ceratopsia
    different from any type of dinosaur then known. He named the new species Agathaumas sylvestris, meaning "marvellous forest-dweller". Soon after, Cope named...
    32 KB (2,962 words) - 13:50, 3 September 2024
  • Thumbnail for Pachycephalosaurus
    spike was even featured in Charles Knight's painting of Cope's ceratopsid Agathaumas, likely based on Marsh's hypothesis. Marsh also named a species of now-dubious...
    45 KB (4,491 words) - 03:21, 25 August 2024
  • Thumbnail for The Lost World (1925 film)
    Meanwhile, an Agathaumas is attacked by the Allosaurus, and gores it to death. Suddenly, a Tyrannosaurus attacks and kills the Agathaumas, along with an...
    18 KB (1,949 words) - 21:28, 9 August 2024
  • Thumbnail for Achelousaurus
    Agathaumas Brachyceratops Ceratops Dysganus Monoclonius Polyonax Chasmosaurinae Centrosaurinae...
    79 KB (9,604 words) - 22:31, 22 August 2024
  • Thumbnail for Ornithopoda
    In Hadrosauridae, he included Hadrosaurus, Cionodon, and tentatively Agathaumas. Ornithopoda means "bird feet", from the Greek ornithos, ornis ("bird")...
    17 KB (1,470 words) - 06:08, 25 June 2024
  • Thumbnail for Charles R. Knight
    Other familiar American Museum paintings include Knight's portrayals of Agathaumas, Allosaurus, Apatosaurus, Brontosaurus, Smilodon, and the Woolly Mammoth...
    22 KB (2,647 words) - 08:37, 21 July 2024
  • Thumbnail for Chaoyangsaurus
    Agathaumas Brachyceratops Ceratops Dysganus Monoclonius Polyonax Chasmosaurinae Centrosaurinae...
    8 KB (940 words) - 22:28, 22 August 2024