title: Osobb Formation
text: # Osobb Formation
  
  The Osobb Formation is a geologic formation in Nevada. It preserves fossils dating back to the Triassic period.
  
  ## Fossil content
  
  ### Cnidarians
  
  Cnidarians reported from the Osobb Formation :
  
  | Genus | Species | Presence | Material | Notes |
  | - | - | - | - | - |
  | Ampakabastrea | A. cowichanensis | Augusta Mountain. | 3 specimens. | A stony coral also found in Alaska, Vancouver Island & the Luning Formation. |
  | Ceriostella | C. martini | Augusta Mountain. | One specimen (UMIP 7160). | A stony coral also found in Alaaka & the Luning Formation. |
  | Coryphyllidae indetermined genus | | Augusta Mountain. | A colony fragment (UMIP 7157). | A stony coral. |
  | Khytrastrea | K. silberlingi | Augusta Mountains. | 4 specimens. | A stony coral. |
  | Margarogyra | M. silberlingi | Augusta Mountain. | 2 specimens (UMIP 7165 & 7166). | A stony coral also found in the Luning Formation. |
  | Nevadoseris | N. punctata | Cain Mountain & Augusta Mountain. | 6 specimens. | A stony coral also found in the Luning Formation. |
  