Benedetto, J. L.; Muñoz, D. F. (2016). Plectorthoid brachiopods from the Lower Ordovician of north-western Argentina; phylogenetic relationships withTarfayaHavlíček and the origin of heterorthids. Journal of Systematic Palaeontology. 15(1): 43-67.
Plectorthoid brachiopods from the Lower Ordovician of north-western Argentina; phylogenetic relationships with<i>Tarfaya</i>Havlíček and the origin of heterorthids