The specific name cabralense is "necessarily emended from the original P. cabralensis because Protuberum is a neuter generic name". Kammerer, Christian F. (2014). Chapter 10. Theriodonta: Introduction. У Christian F. Kammerer; Kenneth D. Angielczyk; Jörg Fröbisch (ред.). Early Evolutionary History of the Synapsida. Springer Science+Business Media Dordrecht. с. 167. doi:10.1007/978-94-007-6841-3_10.
