“Palaeobiology. A Synthesis. Editores: E. G. Briggs Y P. R. Crowther. Blackwell Scientific Publications. Oxford 1990. Pg. I-XIlI, 1-583, Precio: 49,20 T”. 2013. Ameghiniana 27 (1-2): 140. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/1992.