Manual of New Zealand Permian lo Pleistocene foraminiferal biostratigraphy, 1989. By , N. de B. Hornibrook, R. C. Brasier and C. P. Strong. New Zealand Geological Survey Paleontological Bulletin 56, Lower Hutt, 175 pp. (2013). Ameghiniana, 27(1-2), 191-192. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/1996