title: List of fossiliferous stratigraphic units in Ecuador
text: # List of fossiliferous stratigraphic units in Ecuador
  
  This is a list of fossiliferous stratigraphic units in Ecuador.
  
  ## List of fossiliferous stratigraphic units
  
  | Group | Formation | Period |
  | - | - | - |
  | | Cangahua Formation | Late Pleistocene |
  | | Tablazo Formation | Late Pliocene-Late Pleistocene |
  | | Jama Formation | Pliocene-Early Pleistocene |
  | | Canoa Formation | Piacenzian-Calabrian |
  | | Esmeraldas Formation | Early Pliocene |
  | Daule | Onzole Formation | Early Pliocene |
  | | Cachabi Formation | Late Miocene-Early Pliocene |
  | | Punta Gorda Formation | Late Miocene-Early Pliocene |
  | Santiago | Angostura Formation | Late Miocene |
  | Santiago | Picaderos Formation | Late Miocene |
  | Santiago | Borbón Formation | Middle Miocene |
  | Santiago Facies | | Early-Mid Miocene |
  | | Pebas Formation | Aquitanian-Tortonian |
  | | Letrero Formation | Late Miocene |
  | | Azogues Formation | Middle Miocene |
  | | Daule Formation | Middle Miocene |
  | | San Cayetano Formation | Middle Miocene |
  | Nabón | Iguincha Formation | Middle Miocene |
  | Nabón | Latrero Formation | Middle Miocene |
  | | Biblián Formation | Miocene |
  | | Viche Formation | Langhian |
  | Progreso | Progreso Formation | Early-Mid Miocene |
  | Subibaja | Dos Bocas Formation | Chattian |
  | | Posojra Formation | Early-Late Oligocene |
  | | Zapallo Formation | Late Eocene |
  | Ancón | Seca Formation | Late Eocene |
  | Napo | Upper Napo Formation | Early Coniacian-Santonian |
  | Napo | Middle Napo Formation | Turonian |
  | Napo | Lower Napo Formation | Cenomanian |
  | Napo | Basal Napo Formation | Albian |
  | Alamor | Cazaderos Formation | Albian-Cenomanian |
  | | Ciano Formation | Late Aptian-Early Albian |
  