↑ abcdeMonks, Scott and Richardson, Dennis J. (2011) “Phylum Acanthocephala Kohlreuther, 1771 In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness”. At the time this was written, recent Acanthocephala includes 4 classes, 10 orders, 22 families, 147 genera, and 1194 species; fossil taxa includes 1 family, 3 genera, and 5 species