Austromegabalanus psittacus, the giant barnacle or picoroco as it is known in Spanish, is a species of large barnacle native to the coasts of southern Peru, all of Chile and southern Argentina.[2][3] It inhabits the littoral and intertidal zones of rocky shores and normally grows up to 30 centimetres (12 in) tall with a mineralized shell composed of calcite.[4] The picoroco barnacle is used in Chilean cuisine and is one of the ingredients in curanto.
^Robert W. Simpfendörfer; Karin B. Oelckers; David Nash; Daniel A. López (2005). "Kinetic properties of the muscular pyruvate kinase from the giant marine barnacle, Austromegabalanus psittacus (Molina, 1782) (Cirripedia, Balanomorpha)". Crustaceana. 78 (10): 1203–1218. doi:10.1163/156854005775903573.
^Alejandro B. Rodríguez-Navarro; Christiane CabraldeMelo; Nelson Batista; Nilton Morimoto; Pedro Alvarez-Lloret; Miguel Ortega-Huertas; Victor M. Fuenzalida; Jose I. Arias; Juan P. Wiff; Jose L. Arias (2006). "Microstructure and crystallographic-texture of giant barnacle (Austromegabalanus psittacus) shell". Journal of Structural Biology. 156 (2): 355–362. doi:10.1016/j.jsb.2006.04.009. PMID16962792.