• The Jurassic is named after the Jura mountains of Europe
  • About 50% of the world’s oil and gas is sourced from Jurassic shales
  • The name ammonite is from the Greek ram-horned god, Ammon
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An ammonite from the Toarcian, Yorkshire, UK. 10 cm across. (Image: Angela Coe)

  • The Jurassic can be subdivided into more than 150 stratigraphic levels based on ammonite evolution
  • During the Jurassic there was only a single (super)continent – Pangaea
  • The Jurassic was initiated after one of the most intense mass extinctions on Earth
  • The Jurassic is the only geological period to give its name to a major feature film franchise
  • The Jurassic is the only geological period with a World Heritage Site
  • Many of the world’s most important historic cities are built using Jurassic stone – including Jaiselmeer and Oxford
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Ham Hill Stone, a bioclastic grainstone of Toarcian- age that forms a freestone and has been commonly used for buildings in Somerset since Roman times. (Image: Angela Coe)