Mooi, R., Martínez, S. A., & Río, C. J. D. (2016).

A new South American Miocene species of ’one-holed’ sand dollar (Echinoidea: Clypeasteroida: Monophorasteridae)

. Zootaxa, 4173(1), 45–54. https://doi.org/10.11646/zootaxa.4173.1.4