page_title: Toarcian
section_title: †Plesiosaurs
hierarchical_section_title: Toarcian / Palaeontology / †Plesiosaurs
caption_attribution_description: Seeleyosaurus guilelmiimperatoris = Plesiosaurus guilelmiimperatoris
context_page_description: The Toarcian is, in the ICS' geologic timescale, an age and stage in the Early or Lower Jurassic. It spans the time between 182.7 Ma and 174.1 Ma. It follows the Pliensbachian and is followed by the Aalenian.
  The Toarcian age began with the Toarcian turnover, the extinction event that sets its fossil faunas apart from the previous Pliensbachian age.
caption: Seeleysaurus
exif: {}