↑Ma, Junye; Taylor, Paul D.; Xia, Fengsheng; Zhan, Renbin (September 2015). "The oldest known bryozoan: Prophyllodictya (Cryptostomata) from the lower Tremadocian (Lower Ordovician) of Liujiachang, south-western Hubei, central China". Palaeontology. 58 (5): 925–934. doi:10.1111/pala.12189.
↑Ernst, A. (2007). "A cystoporate bryozoan species from the Zechstein (Late Permian)". Paläontologische Zeitschrift. 81 (2): 113–117. doi:10.1007/BF02988385.
↑Halanych, K.M.; Bacheller, J.D.; Aguinaldo, A.M.; Liva, S.M.; Hillis, D.M.; Lake, J.A. (17 March 1995). "Evidence from 18S ribosomal DNA that the lophophorates are protostome animals". Science. 267 (5204): 1641–1643. Bibcode:1995Sci...267.1641H. doi:10.1126/science.7886451. PMID7886451.
↑Fuchs, J.; Obst, M; Sundberg, P (July 2009). "The first comprehensive molecular phylogeny of Bryozoa (Ectoprocta) based on combined analyses of nuclear and mitochondrial genes". Molecular Phylogenetics and Evolution. 52 (1): 225–233. doi:10.1016/j.ympev.2009.01.021. PMID19475710.
↑Brusca; Brusca. "21: The Lophophorate Phyla". The Invertebrates.