Trilobites from Bolivia mainly from the classical Devonian trilobite concretions for the Belen Formation and the Sicasica Formation. From the Devonian of Bolivia has an impressively diverse trilobite fauna been descried. Back in 1968 Wolfart, R. & Voges, A. have described frankly the majority of species of these Formations. But also fine specimens of Ordovician Trilobite have been for sale in the past. Recently it became more quite around the Bolivian Trilobites in science.
(Wolfart, R. & Voges, A., 1968: Beiträge zur Kenntnis des Devons von Bolivien - Beihefte zum Geologischen Jahrbuch. Heft 74)