title: Santiago Formation, Bolivia
text: # Santiago Formation, Bolivia
  
  The Santiago Formation is a Sandbian to Katian geologic formation of central Bolivia. The formation comprises gray quartzitic siltstones.
  
  ## Fossil content
  
  The formation has provided the following fossils:
  
  * Bistramia sp.
  * Lingula sp.
  * Orthoceras sp.
  