Caleta Herradura Formation () is a geologic formation of Late Miocene (Montehermosan) age, cropping out on the Mejillones Peninsula in northern Chile. The erosion at the Coastal Cliff of northern Chile have created particularly good exposures of Caleta Herradura Formation. The formation deposited in a half graben within Mejillones Peninsula. The formation rests nonconformably on the Jorgino Formation.

Fossil content The following fossils have been found in the formation: Group Fossils Notes Mammals Balaenopteridae indet., Odontoceti indet., Otariidae indet. Birds Spheniscus chilensis, Milvago sp., Phalacrocorax sp. Fish Carcharodon carcharias, Carcharias sp., Carcharhinus sp., Chondrichthyes indet., Myliobatidae indet.

See also

Cerro Ballena Coquimbo Formation Navidad Formation Pisco Formation

References

Further reading S. D. Emslie and C. G. Correa. 2003. A new species of penguin (Spheniscidae: Spheniscus) and other birds from the late Pliocene of Chile. Proceedings of the Biological Society of Washington 116(2):308-316