†Patagonicardium Frassinetti C. & Covacevich C. 1999
Frassinetti C. & Covacevich C. 1999. Marine fossil invertebrates from the Guadal Formation (Late Oligocene-Early Miocene) at Pampa Castillo, Region de Aisen, Chile. Boletin Servicio Nacional de Geologia y Mineria Chile, 51 1999: 1-96