“TAPHONOMIC ANALYSIS AND PALEOBIOLOGICAL OBSERVATIONS OF CROSSVALLIA UNIENWILLIA TAMBUSSI ET AL. 2005, THE OLDEST PENGUIN FROM ANTARCTICA”. Ameghiniana 53, no. 3 (June 6, 2016): 282–295. Accessed October 23, 2025. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2917.