Gamoneda Formation
# Gamoneda Formation

The Gamoneda Formation is an Emsian geologic formation of southern Bolivia. The approximately 340 metres (1,120 ft) thick formation comprises marine micaceous grey siltstones and burrowed grey sandstones and shales.

## Fossil content

The formation has provided the following fossils:

* Acastoides gamonedensis
* Australocoelia palmata
* Australospirifer hawkinsi
* Australostrophia mesembria
* Bainella (Belenops) insolita
* Cryptonella baini
* Deltacephalaspis (Deltacephalaspis) comis
* Deltacephalaspis (Deltacephalaspis) retrospina
* Deltacephalaspis (Prestalia) tumida
* Derbyina jamesiana
* Gamonedaspis scutata
* Kozlowskiaspis (Romanops) australis
* Notiochonetes falklandica
* Phacopina convexa
* Plicoplasia planoconvexa
* Protoleptostrophia concinna
* Pustulatia curupira
* Schizostylus (Curuyella) granulata
* Tarijactinoides jarcasensis
* Burmeisteria sp.
* cf. Francovichia sp.
* Calmoniidae indet.
* Eurypterida indet.
