Names & Designations

7 entries, shortest-lived first.

  1. Brontosaurus, as a valid genus1879 → 1903 · Killed by a successorabout 23 yearsNames & Designations
  2. Katrina, as a hurricane namec. 1981 → April 2006 · Killed by disasterabout 25 yearsNames & Designations
  3. Piltdown Man, as a human ancestor1912 → 21 November 1953 · Killed by scandalabout 41 yearsNames & Designations
  4. Vulcan, the planet1859 → 1915 · Killed by a successorabout 55 yearsNames & Designations
  5. Czechoslovakia, as a country name1918 → 31 December 1992 · Killed by regulationabout 74 yearsNames & Designations
  6. Pluto's status as a planet18 February 1930 → 24 August 2006 · Killed by regulation76y 6mNames & Designations
  7. The kilogram as a physical object1889 → 20 May 2019 · Killed by a successorabout 130 yearsNames & Designations