List of fossiliferous stratigraphic units in Ecuador
# 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 |
