The Anzaldo Formation is a Katian geologic formation of central Bolivia. The formation belongs to the Cochabamba Group, overlies the Capinota Formation and is overlain by the San Benito Formation. The formation is famous for being where Sacabambaspis, a jawless fish that has become a popular internet meme in recent years, was discovered.Anzaldo Formation at Fossilworks.org
Fossil content The formation has provided the following fossils:
Fish Pteraspidomorphi Sacabambaspis janvieriGagnier et al., 1996Pradel et al., 2007
Trilobites Huemacaspis bistramiEmig & Herrera, 2006
Leiostegina inexpectansBranisa, 1965
Bivalves
?Grammysia sp. ?Modiomorpha sp. ?Parallelodon sp. "Ctenodonta" sp. "Goniophorina" sp.
Gastropods Gyrospira tourteloti
Lingulida Bistramia elegans Dignomia munsterii
See also
List of fossiliferous stratigraphic units in Bolivia Cancañiri Formation La Ciénega Formation Santiago Formation
References
Bibliography