title: Sunrise Formation
text: # Sunrise Formation
  
  The Sunrise Formation is a geologic formation in Nevada. It preserves fossils dating back to the Hettangian to Sinemurian stages of the Early Jurassic period.
  
  ## Fossil content
  
  Among others, the following fossils have been reported from the formation:
  
  ### Ammonites
  
  * Alsatites proaries
  * Arnioceras ritterbushi
  * A. sparsum
  * Coroniceras involutum
  * C. luningense
  * Guexiceras profundus
  * Tipperoceras mullerense
  * Tmaegoceras nudaries
  
  ### Bivalves
  
  * Agerchlamys boellingi
  * Jaworskiella siemonmulleri
  * Trigonia aff. hemisphaerica
  * Vaugonia cf. vancouverensis
  * Frenguelliella sp.
  
  ### Echinoids
  
  * Plesiechinus hawkinsi
  