New Strophalosiidae (Brachiopoda) from the early Permian of Argentina

New representatives of the family Strophalosiidae (Brachiopoda) are described from the Tupe Formation of the Paganzo Basin, Argentina. The genus <i>Coronalosia</i> Waterhouse & Gupta is reviewed and the new taxa <i>Coronalosia argentinensis</i> sp. nov. and <i>Tupelosia paganzoensis</i> gen. et sp. nov. proposed. The age of the Tupe Formation is reviewed and a middle to late Asselian (Early Permian) age is preferred.<br />The new genus <i>Guadalupelosi</i><i>a</i> from the mid-Permian of West Texas, USA, is also proposed.<br />