page_title: 20th century in ichnology
section_title: 1910s
hierarchical_section_title: 20th century in ichnology / 1910s
caption_attribution_description: English: Laoporus, an extinct reptile ichnite. Took the photo at Museo di Storia Naturale di Venezia
context_page_description: The 20th century in ichnology refers to advances made between the years 1900 and 1999 in the scientific study of trace fossils, the preserved record of the behavior and physiological processes of ancient life forms, especially fossil footprints. Significant fossil trackway discoveries began almost immediately after the start of the 20th century with the 1900 discovery at Ipolytarnoc, Hungary of a wide variety of bird and mammal footprints left behind during the early Miocene. Not long after, fossil Iguanodon footprints were discovered in Sussex, England, a discovery that probably served as the inspiration for Sir Arthur Conan Doyle's The Lost World.
  Several enduring mysteries from the 19th century continued to vex ichnologists, like the identity of the Chirotherium trackmaker. Renowned paleontologist Franz von Nopcsa attributed the ichnogenus to the prosauropod dinosaur Plateosaurus, despite an apparent mismatch between its number of toes and the preserved digit traces of Chirotherium. Von Nopcsa explained the discrepancy by arguing that one of the impressions in the Chirotherium tracks was left by a soft tissue structure that did not fossilize.
context_section_description: 1910
  Traces in the genus Octopodichnus were discovered in the Permian-aged Lyons Sandstone of Colorado.
  1913
  Joviano Pacheco discovered the first dinosaur footprints in Brazil.
  c. 1914
  90 million year old Cretaceous dinosaur footprints were discovered in New Jersey but were accidentally destroyed during an attempt at excavating them.
  1914
  Barnum Brown discovered the Centrosaurus apertus specimen AMNH 5351. Randy Moore has described the skeleton as the most complete Brown ever discovered.
  1915
  Charles Schuchert discovered Carboniferous-aged fossil footprints in the rocks of the Wescogame Formation near the Grand Canyon.
  1915-1916
  Gomes first described the large Late Jurassic theropod footprints from Cabo Mondego, Portugal.
  1918
  Lull described the ichnogenus Laoporus.
caption: Laoporus
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