Armstrong, M., Westrop, S.R. & Eoff, J.D. (2020)

Systematics of a survivor: the Cambrian kingstoniid trilobite Blountia Walcott, 1916 across the Marjuman–Steptoean (Guzhangian–Paibian) extinction interval in Laurentian North America

. Zootaxa, 4804 (1), 1–79.