Plesiosauria

Appears in4 items

• 
  History of the Universe1 item
  • Mesozoic251.9 Ma
• 
  The Age of Dinosaurs2 items
  • 
    Mary Anning’s plesiosaurc. 197 Ma
  • Chicxulub impact · victimc. 66.043 Ma
• 
  The Big Five Mass Extinctions1 item
  • 
    End-Cretaceous extinction · victimc. 66.043 Ma

Sources

1. WebsiteMary Anning: The unsung hero of fossil discovery
2. BookVertebrate Palaeontology