↑ Jr, P.; George, (2000). "Fossil onychophorans from Dominican and Baltic amber: Tertiapatus dominicanus n.g., n.sp. (Tertiapatidae n.fam.) and Succinipatopsis balticus n.g., n.sp. (Succinipatopsidae n.fam.) with a proposed classification of the subphylum Onychophora". Invertebrate Biology 119: 104. doi:10.1111/j.1744-7410.2000.tb00178.x
↑ Prothero, D. R.; Buell (llustrator), C. D. (2007). Evolution: What the Fossils Say and Why It Matters. New York: Columbia University Press. p. 193. ISBN 0-231-13962-4.
↑ Holm, E.; Dippenaar-Schoeman, A. (2010). The Arthropods of Southern Africa. ISBN 978-0-7993-4689-3.
