Attributes / relations provided by
♦ ¹del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ ²"Diet of the thin-spined porcupine (Chaetomys subspinosus), an Atlantic forest endemic threatened with extinction in southeastern Brazil", Rodrigo B. de Souto Lima, Pedro A. Oliveira, Adriano G. Chiarello, Mammalian Biology - Zeitschrift für Säugetierkunde Volume 75, Issue 6, November 2010, Pages 538–546