Gamoneda Formation


The Gamoneda Formation is an Emsian geologic formation of southern Bolivia. The approximately thick formation comprises marine micaceous grey siltstones and burrowed grey sandstones and shales.

Fossil content

The formation has provided the following fossils:Acastoides gamonedensisAustralocoelia palmataAustralospirifer hawkinsiAustralostrophia mesembriaBainella (Belenops) insolitaCryptonella bainiDeltacephalaspis (Deltacephalaspis) comisDeltacephalaspis (Deltacephalaspis) retrospinaDeltacephalaspis (Prestalia) tumidaDerbyina jamesianaGamonedaspis scutataKozlowskiaspis (Romanops) australisNotiochonetes falklandica Phacopina convexaPlicoplasia planoconvexaProtoleptostrophia concinnaPustulatia curupiraSchizostylus (Curuyella) granulataTarijactinoides jarcasensisBurmeisteria sp.cf. Francovichia sp.